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Sports·MLB

Kansas City Royals vs St. Louis Cardinals

3d 21h
Polymarket
Royals
Royals
6:15 PMMay 17
Cardinals
Cardinals
$0.00 Vol.Polymarket

Moneyline

$0 Vol.

Will there be a run in the first inning?

$0 Vol.

In the upcoming MLB game between the Kansas City Royals and St. Louis Cardinals, scheduled for May 17 at 2:15PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals 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 Kansas City Royals and St. Louis Cardinals, scheduled for May 17 at 2:15 PM ET: This market will resolve to "Yes" if at least one run is scored in the 1st inning by either the Kansas City Royals 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.St. Louis Cardinals enter their home interleague series against the Kansas City Royals with a strong 23-16 record atop the NL Central race, bolstered by recent road wins including a 6-0 shutout and 2-1 victory over the Padres last week, while the Royals sit at 17-21 in fourth place in the AL Central after a mixed stretch with a win over Detroit but ongoing struggles. Key for traders: Royals' rotation is depleted by ace Cole Ragans' 15-day IL placement May 8 for elbow impingement after exiting early versus Cleveland, plus Bailey Falter's fresh elbow inflammation sidelining him today, contrasting Cardinals' healthier staff. Series opener Friday features Royals' Michael Wacha (2.63 ERA) versus Dustin May at Busch Stadium amid mild weather forecasts; Cardinals hold historical head-to-head edge in the Battle of Missouri.

In the upcoming MLB game between the Kansas City Royals and St. Louis Cardinals, scheduled for May 17 at 2:15PM ET:

This market will resolve to "Kansas City Royals" if the Kansas City Royals 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
$0
End Date
May 24, 2026
Market Opened
May 11, 2026, 9:00 AM ET

Resolution Source

https://www.mlb.com/

Resolver

0x65070BE91...
In the upcoming MLB game between the Kansas City Royals and St. Louis Cardinals, scheduled for May 17 at 2:15PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals 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. Royals” market on Polymarket lets you trade on the outcome of the MLB game between the St. Louis Cardinals and the Kansas City Royals, scheduled for May 17, 2026 at 2:15 PM ET. The primary market is the moneyline — which team will win the game — where Royals is currently priced at 61¢ (61% implied probability) and Cardinals at 39¢ (39%). 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. Royals” market has generated $NaN 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. Royals,” 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 39¢ and KC at 61¢. 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. Royals” show Kansas City Royals at 61¢ (61% implied probability) and St. Louis Cardinals at 39¢ (39%). 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. Royals” 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

Kansas City Royals vs St. Louis Cardinals

3d 21h
Polymarket
Royals
Royals
6:15 PMMay 17
Cardinals
Cardinals
$0.00 Vol.Polymarket

Moneyline

$0 Vol.

Will there be a run in the first inning?

$0 Vol.

In the upcoming MLB game between the Kansas City Royals and St. Louis Cardinals, scheduled for May 17 at 2:15PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals 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 Kansas City Royals and St. Louis Cardinals, scheduled for May 17 at 2:15 PM ET: This market will resolve to "Yes" if at least one run is scored in the 1st inning by either the Kansas City Royals 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.St. Louis Cardinals enter their home interleague series against the Kansas City Royals with a strong 23-16 record atop the NL Central race, bolstered by recent road wins including a 6-0 shutout and 2-1 victory over the Padres last week, while the Royals sit at 17-21 in fourth place in the AL Central after a mixed stretch with a win over Detroit but ongoing struggles. Key for traders: Royals' rotation is depleted by ace Cole Ragans' 15-day IL placement May 8 for elbow impingement after exiting early versus Cleveland, plus Bailey Falter's fresh elbow inflammation sidelining him today, contrasting Cardinals' healthier staff. Series opener Friday features Royals' Michael Wacha (2.63 ERA) versus Dustin May at Busch Stadium amid mild weather forecasts; Cardinals hold historical head-to-head edge in the Battle of Missouri.

In the upcoming MLB game between the Kansas City Royals and St. Louis Cardinals, scheduled for May 17 at 2:15PM ET:

This market will resolve to "Kansas City Royals" if the Kansas City Royals 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
$0
End Date
May 24, 2026
Market Opened
May 11, 2026, 9:00 AM ET

Resolution Source

https://www.mlb.com/

Resolver

0x65070BE91...
In the upcoming MLB game between the Kansas City Royals and St. Louis Cardinals, scheduled for May 17 at 2:15PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals 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. Royals” market on Polymarket lets you trade on the outcome of the MLB game between the St. Louis Cardinals and the Kansas City Royals, scheduled for May 17, 2026 at 2:15 PM ET. The primary market is the moneyline — which team will win the game — where Royals is currently priced at 61¢ (61% implied probability) and Cardinals at 39¢ (39%). 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. Royals” market has generated $NaN 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. Royals,” 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 39¢ and KC at 61¢. 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. Royals” show Kansas City Royals at 61¢ (61% implied probability) and St. Louis Cardinals at 39¢ (39%). 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. Royals” 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.