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Sports·MLB

Seattle Mariners vs Kansas City Royals

5d 21h
Polymarket
Mariners
Mariners
8:10 PMMay 23
Royals
Royals
$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 Seattle Mariners and Kansas City Royals, scheduled for May 23 at 4:10PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. This market will resolve to "Kansas City Royals" if the Kansas City Royals 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 Seattle Mariners and Kansas City Royals, scheduled for May 23 at 4:10 PM ET: This market will resolve to "Yes" if at least one run is scored in the 1st inning by either the Seattle Mariners or Kansas City Royals. 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 Seattle Mariners and Kansas City Royals meet on the road for a May 24 matchup, with recent series history shaping trader focus. The Royals swept a three-game set in Seattle from May 1-3, winning two contests in the eighth inning or later and another in the 10th, capitalizing on late offense and strong bullpen work despite high strikeout totals. Mariners starters have struggled to contain Kansas City’s lineup in those outings, while the Royals’ pitching staff has posted efficient results on the road. Injury updates remain fluid for Seattle, including catcher Cal Raleigh’s day-to-day status and infielder Brendan Donovan’s availability. Both clubs enter with comparable recent form in the AL, making home-field advantage and bullpen depth key variables that could shift implied probabilities before first pitch.

In the upcoming MLB game between the Seattle Mariners and Kansas City Royals, scheduled for May 23 at 4:10PM ET:

This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game.

This market will resolve to "Kansas City Royals" if the Kansas City Royals 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 30, 2026
Market Opened
May 17, 2026, 9:00 AM ET

Resolution Source

https://www.mlb.com/

Resolver

0x65070BE91...
In the upcoming MLB game between the Seattle Mariners and Kansas City Royals, scheduled for May 23 at 4:10PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. This market will resolve to "Kansas City Royals" if the Kansas City Royals 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 “Royals vs. Mariners” market on Polymarket lets you trade on the outcome of the MLB game between the Kansas City Royals and the Seattle Mariners, scheduled for May 23, 2026 at 4:10 PM ET. The primary market is the moneyline — which team will win the game — where Mariners is currently priced at 56¢ (56% implied probability) and Royals at 44¢ (44%). 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 “Royals vs. Mariners” 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 “Royals vs. Mariners,” 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 KC at 44¢ and SEA at 56¢. 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 “Royals vs. Mariners” show Seattle Mariners at 56¢ (56% implied probability) and Kansas City Royals at 44¢ (44%). 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 “Royals vs. Mariners” 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

Seattle Mariners vs Kansas City Royals

5d 21h
Polymarket
Mariners
Mariners
8:10 PMMay 23
Royals
Royals
$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 Seattle Mariners and Kansas City Royals, scheduled for May 23 at 4:10PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. This market will resolve to "Kansas City Royals" if the Kansas City Royals 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 Seattle Mariners and Kansas City Royals, scheduled for May 23 at 4:10 PM ET: This market will resolve to "Yes" if at least one run is scored in the 1st inning by either the Seattle Mariners or Kansas City Royals. 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 Seattle Mariners and Kansas City Royals meet on the road for a May 24 matchup, with recent series history shaping trader focus. The Royals swept a three-game set in Seattle from May 1-3, winning two contests in the eighth inning or later and another in the 10th, capitalizing on late offense and strong bullpen work despite high strikeout totals. Mariners starters have struggled to contain Kansas City’s lineup in those outings, while the Royals’ pitching staff has posted efficient results on the road. Injury updates remain fluid for Seattle, including catcher Cal Raleigh’s day-to-day status and infielder Brendan Donovan’s availability. Both clubs enter with comparable recent form in the AL, making home-field advantage and bullpen depth key variables that could shift implied probabilities before first pitch.

In the upcoming MLB game between the Seattle Mariners and Kansas City Royals, scheduled for May 23 at 4:10PM ET:

This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game.

This market will resolve to "Kansas City Royals" if the Kansas City Royals 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 30, 2026
Market Opened
May 17, 2026, 9:00 AM ET

Resolution Source

https://www.mlb.com/

Resolver

0x65070BE91...
In the upcoming MLB game between the Seattle Mariners and Kansas City Royals, scheduled for May 23 at 4:10PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. This market will resolve to "Kansas City Royals" if the Kansas City Royals 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 “Royals vs. Mariners” market on Polymarket lets you trade on the outcome of the MLB game between the Kansas City Royals and the Seattle Mariners, scheduled for May 23, 2026 at 4:10 PM ET. The primary market is the moneyline — which team will win the game — where Mariners is currently priced at 56¢ (56% implied probability) and Royals at 44¢ (44%). 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 “Royals vs. Mariners” 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 “Royals vs. Mariners,” 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 KC at 44¢ and SEA at 56¢. 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 “Royals vs. Mariners” show Seattle Mariners at 56¢ (56% implied probability) and Kansas City Royals at 44¢ (44%). 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 “Royals vs. Mariners” 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.