Chicago White Sox vs. Arizona Diamondbacks
Prediction market · Polymarket
Overview
In the upcoming MLB game between the Chicago White Sox and Arizona Diamondbacks, scheduled for April 21 at 9:40PM ET: This market will resolve to "Chicago White Sox" if the Chicago White Sox win the game. This market will resolve to "Arizona Diamondbacks" if the Arizona Diamondbacks 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.
Ticker
mlb-cws-ari-2026-04-21
Volume
30.5K
24h volume
30.5K
1w volume
30.5K
Open interest
27.4K
Liquidity
410.0K
Liquidity CLOB
410.0K
Start
Apr 15, 2026
End
Apr 29, 2026
Status
Active
Access
Restricted
Created
Apr 22, 2026
Resolution source
https://www.mlb.com/
Event ID
381958
Slug
mlb-cws-ari-2026-04-21
Markets
4
Raw event data
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"slug": "mlb-cws-ari-2026-04-21",
"title": "Chicago White Sox vs. Arizona Diamondbacks",
"description": "In the upcoming MLB game between the Chicago White Sox and Arizona Diamondbacks, scheduled for April 21 at 9:40PM ET:\n\nThis market will resolve to \"Chicago White Sox\" if the Chicago White Sox win the game.\n\nThis market will resolve to \"Arizona Diamondbacks\" if the Arizona Diamondbacks win the game.\n\nIf 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.\n\nThe 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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"description": "In the upcoming MLB game between the Chicago White Sox and Arizona Diamondbacks, scheduled for April 21 at 9:40PM ET:\n\nThis market will resolve to \"Chicago White Sox\" if the Chicago White Sox win the game.\n\nThis market will resolve to \"Arizona Diamondbacks\" if the Arizona Diamondbacks win the game.\n\nIf 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.\n\nThe 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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"description": "In the upcoming MLB game between the Chicago White Sox and Arizona Diamondbacks, scheduled for April 21 at 9:40 PM ET:\n\nThis market will resolve to \"Yes\" if at least one run is scored in the 1st inning by either the Chicago White Sox or Arizona Diamondbacks.\n\nThis market will resolve to \"No\" if no runs are scored in the 1st inning by either team.\n\nIf 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.\n\nTo 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.\n\nThe 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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"question": "Spread: Arizona Diamondbacks (-1.5)",
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"description": "In the upcoming MLB game between the Chicago White Sox and Arizona Diamondbacks, scheduled for April 21 at 9:40 PM ET:\n\nThis market will resolve to \"Arizona Diamondbacks\" if the Arizona Diamondbacks win the game by 2 or more runs.\n\nOtherwise, this market will resolve to \"Chicago White Sox\". If the game ends in a tie, this market will resolve to \"Chicago White Sox\".\n\nIf 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.\n\nTo 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.\n\nThe 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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"description": "In the upcoming MLB game between the Chicago White Sox and Arizona Diamondbacks, scheduled for April 21 at 9:40 PM ET:\n\nThis market will resolve to \"Over\" if the Chicago White Sox and Arizona Diamondbacks combine to score 10 or more runs in this game.\n\nIf the combined total is less than 10, this market will resolve to \"Under\".\n\nIf 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.\n\nTo 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.\n\nThe 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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}- Will there be a run scored in the first inning?: Chicago White Sox vs. Arizona DiamondbacksVol 21Liq 1.5KEnd Apr 29, 2026OpenOrder book
- Chicago White Sox vs. Arizona Diamondbacks: O/U 9.5Vol 68Liq 46.2KEnd Apr 22, 2026OpenOrder book
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