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Sports·MLB

Kansas City Royals vs Seattle Mariners

Starts in 19h 10m 40s
Polymarket
Royals
Royals
1:45 AMMay 2
Mariners
Mariners
$11.61K Vol.Polymarket

Moneyline

$11.6K Vol.

Will there be a run in the first inning?

$57 Vol.

In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 1 at 9:45PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals win the game. This market will resolve to "Seattle Mariners" if the Seattle Mariners 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 Seattle Mariners, scheduled for May 1 at 9:45 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 Seattle Mariners. 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.Seattle Mariners (16-16, 7-3 last 10, 10-7 home) host road-challenged Kansas City Royals (12-18, 5-5 last 10, 3-11 away) in the opener of a three-game AL interleague series at T-Mobile Park, featuring Bryan Woo (1-2, 3.86 ERA) versus Cole Ragans (1-4, 5.00 ERA, coming off 11 strikeouts and one run over six innings). Royals' bullpen is thinned by Carlos Estevez (15-day IL, foot contusion), James McArthur (60-day IL), and season-ending shoulder surgery for Jonathan India, with Vinnie Pasquantino day-to-day (back tightness). Mariners expect Brendan Donovan's activation from groin strain but monitor Matt Brash's right side discomfort, underscoring Seattle's form edge and home-field factors driving trader sentiment.

In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 1 at 9:45PM ET:

This market will resolve to "Kansas City Royals" if the Kansas City Royals win the game.

This market will resolve to "Seattle Mariners" if the Seattle Mariners 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
$11,611
End Date
May 9, 2026
Market Opened
Apr 25, 2026, 9:01 AM ET

Resolution Source

https://www.mlb.com/

Resolver

0x65070BE91...
In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 1 at 9:45PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals win the game. This market will resolve to "Seattle Mariners" if the Seattle Mariners 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 “Mariners vs. Royals” market on Polymarket lets you trade on the outcome of the MLB game between the Seattle Mariners and the Kansas City Royals, scheduled for May 1, 2026 at 9:45 PM ET. The primary market is the moneyline — which team will win the game — where Mariners is currently priced at 60¢ (60% implied probability) and Royals 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 “Mariners vs. Royals” market has generated $11.6K 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 “Mariners 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 SEA at 60¢ and KC at 41¢. 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 “Mariners vs. Royals” show Seattle Mariners at 60¢ (60% implied probability) and Kansas City Royals 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 “Mariners 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 Seattle Mariners

Starts in 19h 10m 40s
Polymarket
Royals
Royals
1:45 AMMay 2
Mariners
Mariners
$11.61K Vol.Polymarket

Moneyline

$11.6K Vol.

Will there be a run in the first inning?

$57 Vol.

In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 1 at 9:45PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals win the game. This market will resolve to "Seattle Mariners" if the Seattle Mariners 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 Seattle Mariners, scheduled for May 1 at 9:45 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 Seattle Mariners. 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.Seattle Mariners (16-16, 7-3 last 10, 10-7 home) host road-challenged Kansas City Royals (12-18, 5-5 last 10, 3-11 away) in the opener of a three-game AL interleague series at T-Mobile Park, featuring Bryan Woo (1-2, 3.86 ERA) versus Cole Ragans (1-4, 5.00 ERA, coming off 11 strikeouts and one run over six innings). Royals' bullpen is thinned by Carlos Estevez (15-day IL, foot contusion), James McArthur (60-day IL), and season-ending shoulder surgery for Jonathan India, with Vinnie Pasquantino day-to-day (back tightness). Mariners expect Brendan Donovan's activation from groin strain but monitor Matt Brash's right side discomfort, underscoring Seattle's form edge and home-field factors driving trader sentiment.

In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 1 at 9:45PM ET:

This market will resolve to "Kansas City Royals" if the Kansas City Royals win the game.

This market will resolve to "Seattle Mariners" if the Seattle Mariners 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
$11,611
End Date
May 9, 2026
Market Opened
Apr 25, 2026, 9:01 AM ET

Resolution Source

https://www.mlb.com/

Resolver

0x65070BE91...
In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 1 at 9:45PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals win the game. This market will resolve to "Seattle Mariners" if the Seattle Mariners 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 “Mariners vs. Royals” market on Polymarket lets you trade on the outcome of the MLB game between the Seattle Mariners and the Kansas City Royals, scheduled for May 1, 2026 at 9:45 PM ET. The primary market is the moneyline — which team will win the game — where Mariners is currently priced at 60¢ (60% implied probability) and Royals 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 “Mariners vs. Royals” market has generated $11.6K 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 “Mariners 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 SEA at 60¢ and KC at 41¢. 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 “Mariners vs. Royals” show Seattle Mariners at 60¢ (60% implied probability) and Kansas City Royals 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 “Mariners 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.