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Sports·MLB

Pittsburgh Pirates vs St. Louis Cardinals

Polymarket
Pirates
Pirates
2
0
LIVE·Top 4th
Cardinals
Cardinals
$272.35K Vol.Polymarket

Moneyline

$225K Vol.

Spreads

$5.2K Vol.

Totals

$40.7K Vol.

Will there be a run in the first inning?

$1.0K Vol.

In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45PM ET: This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game. This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game by 4 or more runs. Otherwise, this market will resolve to "Pittsburgh Pirates". If the game ends in a tie, this market will resolve to "Pittsburgh Pirates". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game by 3 or more runs. Otherwise, this market will resolve to "St. Louis Cardinals". If the game ends in a tie, this market will resolve to "St. Louis Cardinals". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game by 4 or more runs. Otherwise, this market will resolve to "St. Louis Cardinals". If the game ends in a tie, this market will resolve to "St. Louis Cardinals". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game by 5 or more runs. Otherwise, this market will resolve to "St. Louis Cardinals". If the game ends in a tie, this market will resolve to "St. Louis Cardinals". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game by 2 or more runs. Otherwise, this market will resolve to "Pittsburgh Pirates". If the game ends in a tie, this market will resolve to "Pittsburgh Pirates". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game by 3 or more runs. Otherwise, this market will resolve to "Pittsburgh Pirates". If the game ends in a tie, this market will resolve to "Pittsburgh Pirates". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game by 2 or more runs. Otherwise, this market will resolve to "St. Louis Cardinals". If the game ends in a tie, this market will resolve to "St. Louis Cardinals". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 11 or more runs in this game. If the combined total is less than 11, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 5 or more runs in this game. If the combined total is less than 5, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 6 or more runs in this game. If the combined total is less than 6, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 7 or more runs in this game. If the combined total is less than 7, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 10 or more runs in this game. If the combined total is less than 10, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 8 or more runs in this game. If the combined total is less than 8, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 9 or more runs in this game. If the combined total is less than 9, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Yes" if at least one run is scored in the 1st inning by either the Pittsburgh Pirates or St. Louis Cardinals. This market will resolve to "No" if no runs are scored in the 1st inning by either team. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.The St. Louis Cardinals enter the May 21 series finale at Busch Stadium with momentum after a dramatic 9-6 extra-innings win over the Pittsburgh Pirates on May 19, highlighted by Ivan Herrera’s walk-off three-run homer and four total home runs. The Cardinals’ strong home record and recent extra-inning resilience contrast with Pittsburgh’s efforts to rebound from that defeat while leaning on its starting rotation and offensive contributions from players like Bryan Reynolds. Both NL Central clubs are competitive in the 2026 standings with records hovering near .500, where factors such as bullpen depth, recent form, and home/away splits shape the closely contested matchup.

In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45PM ET:

This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game.

This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game.

If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.

The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
Volume
$240,147
End Date
May 27, 2026
Market Opened
May 14, 2026, 9:00 AM ET

Resolution Source

https://www.mlb.com/

Resolver

0x65070BE91...
In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45PM ET: This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game. This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.

Beware of external links.

Frequently Asked Questions

The “Cardinals vs. Pirates” market on Polymarket lets you trade on the outcome of the MLB game between the St. Louis Cardinals and the Pittsburgh Pirates, scheduled for May 20, 2026 at 7:45 PM ET. The primary market is the moneyline — which team will win the game — where Pirates is currently priced at 60¢ (60% implied probability) and Cardinals at 41¢ (41%). Beyond the moneyline, sports markets on Polymarket may feature spreads, totals (over/under), and player props, giving you multiple ways to trade on this game. Prices reflect real-time crowd-sourced probabilities. Shares in the correct outcome pay out $1 each when the market resolves after the game ends.

As of now, the “Cardinals vs. Pirates” market has generated $240.1K in total trading volume across all market types (moneyline, spreads, totals, and player props). This volume reflects active engagement from the Polymarket trading community, and a deeper pool of traders generally means more informative, reliable odds. You can track live price movements and trade on any market directly on this page.

To trade on “Cardinals vs. Pirates,” start by choosing the market type you want to trade: Moneyline (which team wins), Spreads (margin of victory), Totals (combined score over/under), or Player Props (individual player stat lines). Each market shows the current price for each side — for example, the moneyline shows STL at 41¢ and PIT at 60¢. Select the side you want to trade, choose Buy to take a position or Sell to close an existing one, enter your amount, and click Trade. If your chosen side is correct when the game ends and the market resolves, your shares pay out $1 each. If it’s incorrect, they pay out $0. You can also sell your shares at any time before the game ends to lock in a profit or cut a loss.

The current moneyline odds for “Cardinals vs. Pirates” show Pittsburgh Pirates at 60¢ (60% implied probability) and St. Louis Cardinals at 41¢ (41%). All odds update in real-time as traders buy and sell shares, reflecting the latest collective view of how this game will play out. Check back frequently or bookmark this page to follow how the odds shift as game time approaches.

The “Cardinals vs. Pirates” market resolves based on the official final score of the MLB game as reported by MLB’s official results, including overtime if applicable. Moneyline markets resolve to the team that wins the game. Spread markets resolve based on the final margin of victory relative to the posted line. Totals (over/under) markets resolve based on the combined final score of both teams. Player prop markets resolve based on official box score statistics. If the game is postponed or canceled, the market resolution rules (available in the Rules section on this page) specify how that scenario is handled. We recommend reviewing the full resolution criteria before trading.
Sports·MLB

Pittsburgh Pirates vs St. Louis Cardinals

Polymarket
Pirates
Pirates
2
0
LIVE·Top 4th
Cardinals
Cardinals
$272.35K Vol.Polymarket

Moneyline

$225K Vol.

Spreads

$5.2K Vol.

Totals

$40.7K Vol.

Will there be a run in the first inning?

$1.0K Vol.

In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45PM ET: This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game. This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game by 4 or more runs. Otherwise, this market will resolve to "Pittsburgh Pirates". If the game ends in a tie, this market will resolve to "Pittsburgh Pirates". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game by 3 or more runs. Otherwise, this market will resolve to "St. Louis Cardinals". If the game ends in a tie, this market will resolve to "St. Louis Cardinals". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game by 4 or more runs. Otherwise, this market will resolve to "St. Louis Cardinals". If the game ends in a tie, this market will resolve to "St. Louis Cardinals". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game by 5 or more runs. Otherwise, this market will resolve to "St. Louis Cardinals". If the game ends in a tie, this market will resolve to "St. Louis Cardinals". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game by 2 or more runs. Otherwise, this market will resolve to "Pittsburgh Pirates". If the game ends in a tie, this market will resolve to "Pittsburgh Pirates". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game by 3 or more runs. Otherwise, this market will resolve to "Pittsburgh Pirates". If the game ends in a tie, this market will resolve to "Pittsburgh Pirates". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game by 2 or more runs. Otherwise, this market will resolve to "St. Louis Cardinals". If the game ends in a tie, this market will resolve to "St. Louis Cardinals". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 11 or more runs in this game. If the combined total is less than 11, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 5 or more runs in this game. If the combined total is less than 5, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 6 or more runs in this game. If the combined total is less than 6, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 7 or more runs in this game. If the combined total is less than 7, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 10 or more runs in this game. If the combined total is less than 10, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 8 or more runs in this game. If the combined total is less than 8, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Over" if the Pittsburgh Pirates and St. Louis Cardinals combine to score 9 or more runs in this game. If the combined total is less than 9, this market will resolve to "Under". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45 PM ET: This market will resolve to "Yes" if at least one run is scored in the 1st inning by either the Pittsburgh Pirates or St. Louis Cardinals. This market will resolve to "No" if no runs are scored in the 1st inning by either team. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.The St. Louis Cardinals enter the May 21 series finale at Busch Stadium with momentum after a dramatic 9-6 extra-innings win over the Pittsburgh Pirates on May 19, highlighted by Ivan Herrera’s walk-off three-run homer and four total home runs. The Cardinals’ strong home record and recent extra-inning resilience contrast with Pittsburgh’s efforts to rebound from that defeat while leaning on its starting rotation and offensive contributions from players like Bryan Reynolds. Both NL Central clubs are competitive in the 2026 standings with records hovering near .500, where factors such as bullpen depth, recent form, and home/away splits shape the closely contested matchup.

In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45PM ET:

This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game.

This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game.

If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.

The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
Volume
$240,147
End Date
May 27, 2026
Market Opened
May 14, 2026, 9:00 AM ET

Resolution Source

https://www.mlb.com/

Resolver

0x65070BE91...
In the upcoming MLB game between the Pittsburgh Pirates and St. Louis Cardinals, scheduled for May 20 at 7:45PM ET: This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates win the game. This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.

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Frequently Asked Questions

The “Cardinals vs. Pirates” market on Polymarket lets you trade on the outcome of the MLB game between the St. Louis Cardinals and the Pittsburgh Pirates, scheduled for May 20, 2026 at 7:45 PM ET. The primary market is the moneyline — which team will win the game — where Pirates is currently priced at 60¢ (60% implied probability) and Cardinals at 41¢ (41%). Beyond the moneyline, sports markets on Polymarket may feature spreads, totals (over/under), and player props, giving you multiple ways to trade on this game. Prices reflect real-time crowd-sourced probabilities. Shares in the correct outcome pay out $1 each when the market resolves after the game ends.

As of now, the “Cardinals vs. Pirates” market has generated $240.1K in total trading volume across all market types (moneyline, spreads, totals, and player props). This volume reflects active engagement from the Polymarket trading community, and a deeper pool of traders generally means more informative, reliable odds. You can track live price movements and trade on any market directly on this page.

To trade on “Cardinals vs. Pirates,” start by choosing the market type you want to trade: Moneyline (which team wins), Spreads (margin of victory), Totals (combined score over/under), or Player Props (individual player stat lines). Each market shows the current price for each side — for example, the moneyline shows STL at 41¢ and PIT at 60¢. Select the side you want to trade, choose Buy to take a position or Sell to close an existing one, enter your amount, and click Trade. If your chosen side is correct when the game ends and the market resolves, your shares pay out $1 each. If it’s incorrect, they pay out $0. You can also sell your shares at any time before the game ends to lock in a profit or cut a loss.

The current moneyline odds for “Cardinals vs. Pirates” show Pittsburgh Pirates at 60¢ (60% implied probability) and St. Louis Cardinals at 41¢ (41%). All odds update in real-time as traders buy and sell shares, reflecting the latest collective view of how this game will play out. Check back frequently or bookmark this page to follow how the odds shift as game time approaches.

The “Cardinals vs. Pirates” market resolves based on the official final score of the MLB game as reported by MLB’s official results, including overtime if applicable. Moneyline markets resolve to the team that wins the game. Spread markets resolve based on the final margin of victory relative to the posted line. Totals (over/under) markets resolve based on the combined final score of both teams. Player prop markets resolve based on official box score statistics. If the game is postponed or canceled, the market resolution rules (available in the Rules section on this page) specify how that scenario is handled. We recommend reviewing the full resolution criteria before trading.