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Sports·MLB

Houston Astros vs Cleveland Guardians

Polymarket
Astros
Astros
5
8
FINAL
Guardians
Guardians
$881.07K Vol.Polymarket

Moneyline

$777K Vol.

Spreads

$46.4K Vol.

Totals

$54.2K Vol.

Will there be a run in the first inning?

$3.2K Vol.

In the upcoming MLB game between the Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10PM ET: This market will resolve to "Houston Astros" if the Houston Astros win the game. This market will resolve to "Cleveland Guardians" if the Cleveland Guardians 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Cleveland Guardians" if the Cleveland Guardians win the game by 2 or more runs. Otherwise, this market will resolve to "Houston Astros". If the game ends in a tie, this market will resolve to "Houston Astros". 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Cleveland Guardians" if the Cleveland Guardians win the game by 3 or more runs. Otherwise, this market will resolve to "Houston Astros". If the game ends in a tie, this market will resolve to "Houston Astros". 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Houston Astros" if the Houston Astros win the game by 2 or more runs. Otherwise, this market will resolve to "Cleveland Guardians". If the game ends in a tie, this market will resolve to "Cleveland Guardians". 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Houston Astros" if the Houston Astros win the game by 3 or more runs. Otherwise, this market will resolve to "Cleveland Guardians". If the game ends in a tie, this market will resolve to "Cleveland Guardians". 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Cleveland Guardians" if the Cleveland Guardians win the game by 4 or more runs. Otherwise, this market will resolve to "Houston Astros". If the game ends in a tie, this market will resolve to "Houston Astros". 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians combine to score 12 or more runs in this game. If the combined total is less than 12, 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians combine to score 13 or more runs in this game. If the combined total is less than 13, 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Yes" if at least one run is scored in the 1st inning by either the Houston Astros or Cleveland Guardians. 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.Cleveland Guardians host the Houston Astros in the series finale at Progressive Field, with the matchup tied 1-1 after Houston's 9-2 opener win powered by Isaac Paredes' two home runs and Cleveland's 8-5 rally victory Tuesday via Nolan DeLauter's bases-loaded triple. Probable starters Tanner Bibee (0-2, 4.81 ERA, fresh off six scoreless innings versus Baltimore) for the Guardians and Peter Lambert (0-1, 7.20 ERA, recent spot-start strikeouts) tilt toward Cleveland's home advantage amid cool 56-degree weather. Astros' slow 8-15 start and mounting injuries—Jeremy Peña and Zach Dezenzo on 10-day IL, Hunter Brown sidelined with shoulder strain—contrast Guardians' steadier 13-11 form in a pivotal AL Central tilt, where bullpen depth and recent momentum could sway trader consensus.

In the upcoming MLB game between the Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10PM ET:

This market will resolve to "Houston Astros" if the Houston Astros win the game.

This market will resolve to "Cleveland Guardians" if the Cleveland Guardians 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
$881,068
End Date
Apr 28, 2026
Market Opened
Apr 15, 2026, 4:19 PM ET

Resolution Source

https://www.mlb.com/

Resolver

0x65070BE91...
In the upcoming MLB game between the Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10PM ET: This market will resolve to "Houston Astros" if the Houston Astros win the game. This market will resolve to "Cleveland Guardians" if the Cleveland Guardians 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 “Guardians vs. Astros” market on Polymarket lets you trade on the outcome of the MLB game between the Cleveland Guardians and the Houston Astros, scheduled for April 21, 2026 at 6:10 PM ET. The primary market is the moneyline — which team will win the game — where Guardians is currently priced at 100¢ (100% implied probability) and Astros at 0¢ (0%). 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 “Guardians vs. Astros” market has generated $881.1K 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 “Guardians vs. Astros,” 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 CLE at 100¢ and HOU at 0¢. 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 “Guardians vs. Astros” show Cleveland Guardians at 100¢ (100% implied probability) and Houston Astros at 0¢ (0%). 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 “Guardians vs. Astros” 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

Houston Astros vs Cleveland Guardians

Polymarket
Astros
Astros
5
8
FINAL
Guardians
Guardians
$881.07K Vol.Polymarket

Moneyline

$777K Vol.

Spreads

$46.4K Vol.

Totals

$54.2K Vol.

Will there be a run in the first inning?

$3.2K Vol.

In the upcoming MLB game between the Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10PM ET: This market will resolve to "Houston Astros" if the Houston Astros win the game. This market will resolve to "Cleveland Guardians" if the Cleveland Guardians 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Cleveland Guardians" if the Cleveland Guardians win the game by 2 or more runs. Otherwise, this market will resolve to "Houston Astros". If the game ends in a tie, this market will resolve to "Houston Astros". 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Cleveland Guardians" if the Cleveland Guardians win the game by 3 or more runs. Otherwise, this market will resolve to "Houston Astros". If the game ends in a tie, this market will resolve to "Houston Astros". 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Houston Astros" if the Houston Astros win the game by 2 or more runs. Otherwise, this market will resolve to "Cleveland Guardians". If the game ends in a tie, this market will resolve to "Cleveland Guardians". 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Houston Astros" if the Houston Astros win the game by 3 or more runs. Otherwise, this market will resolve to "Cleveland Guardians". If the game ends in a tie, this market will resolve to "Cleveland Guardians". 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Cleveland Guardians" if the Cleveland Guardians win the game by 4 or more runs. Otherwise, this market will resolve to "Houston Astros". If the game ends in a tie, this market will resolve to "Houston Astros". 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians combine to score 12 or more runs in this game. If the combined total is less than 12, 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Over" if the Houston Astros and Cleveland Guardians combine to score 13 or more runs in this game. If the combined total is less than 13, 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 Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10 PM ET: This market will resolve to "Yes" if at least one run is scored in the 1st inning by either the Houston Astros or Cleveland Guardians. 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.Cleveland Guardians host the Houston Astros in the series finale at Progressive Field, with the matchup tied 1-1 after Houston's 9-2 opener win powered by Isaac Paredes' two home runs and Cleveland's 8-5 rally victory Tuesday via Nolan DeLauter's bases-loaded triple. Probable starters Tanner Bibee (0-2, 4.81 ERA, fresh off six scoreless innings versus Baltimore) for the Guardians and Peter Lambert (0-1, 7.20 ERA, recent spot-start strikeouts) tilt toward Cleveland's home advantage amid cool 56-degree weather. Astros' slow 8-15 start and mounting injuries—Jeremy Peña and Zach Dezenzo on 10-day IL, Hunter Brown sidelined with shoulder strain—contrast Guardians' steadier 13-11 form in a pivotal AL Central tilt, where bullpen depth and recent momentum could sway trader consensus.

In the upcoming MLB game between the Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10PM ET:

This market will resolve to "Houston Astros" if the Houston Astros win the game.

This market will resolve to "Cleveland Guardians" if the Cleveland Guardians 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
$881,068
End Date
Apr 28, 2026
Market Opened
Apr 15, 2026, 4:19 PM ET

Resolution Source

https://www.mlb.com/

Resolver

0x65070BE91...
In the upcoming MLB game between the Houston Astros and Cleveland Guardians, scheduled for April 21 at 6:10PM ET: This market will resolve to "Houston Astros" if the Houston Astros win the game. This market will resolve to "Cleveland Guardians" if the Cleveland Guardians 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 “Guardians vs. Astros” market on Polymarket lets you trade on the outcome of the MLB game between the Cleveland Guardians and the Houston Astros, scheduled for April 21, 2026 at 6:10 PM ET. The primary market is the moneyline — which team will win the game — where Guardians is currently priced at 100¢ (100% implied probability) and Astros at 0¢ (0%). 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 “Guardians vs. Astros” market has generated $881.1K 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 “Guardians vs. Astros,” 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 CLE at 100¢ and HOU at 0¢. 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 “Guardians vs. Astros” show Cleveland Guardians at 100¢ (100% implied probability) and Houston Astros at 0¢ (0%). 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 “Guardians vs. Astros” 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.