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Kansas City Royals vs. Seattle Mariners
Prediction market · Polymarket
Overview
In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 2 at 9:40PM 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.
Ticker
mlb-kc-sea-2026-05-02
Volume
104.0K
24h volume
104.0K
1w volume
104.0K
Open interest
88.4K
Liquidity
324.9K
Liquidity CLOB
324.9K
Start
Apr 26, 2026
End
May 10, 2026
Status
Active
Access
Restricted
Created
May 3, 2026
Resolution source
https://www.mlb.com/
Event ID
420158
Slug
mlb-kc-sea-2026-05-02
Markets
5
Raw event data
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"id": "420158",
"ticker": "mlb-kc-sea-2026-05-02",
"slug": "mlb-kc-sea-2026-05-02",
"title": "Kansas City Royals vs. Seattle Mariners",
"description": "In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 2 at 9:40PM ET:\n\nThis market will resolve to \"Kansas City Royals\" if the Kansas City Royals win the game.\n\nThis market will resolve to \"Seattle Mariners\" if the Seattle Mariners 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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"creationDate": "2026-05-03T01:40:00Z",
"endDate": "2026-05-10T01:40:00Z",
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"active": true,
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"restricted": true,
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"volume": 104036.75837699998,
"openInterest": 88367.664377,
"createdAt": "2026-04-26T13:00:35.102766Z",
"updatedAt": "2026-05-03T01:42:23.158511Z",
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"endDate": "2026-05-10T01:40:00Z",
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"description": "In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 2 at 9:40PM ET:\n\nThis market will resolve to \"Kansas City Royals\" if the Kansas City Royals win the game.\n\nThis market will resolve to \"Seattle Mariners\" if the Seattle Mariners 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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"volume1wk": 102653.570698,
"volume1mo": 102653.570698,
"volume1yr": 102653.570698,
"gameStartTime": "2026-05-03 01:40:00+00",
"secondsDelay": 1,
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"question": "Will there be a run scored in the first inning?: Kansas City Royals vs. Seattle Mariners",
"conditionId": "0xffdb123f68d9563840db70223e8d8af6ef6abc2960d88b5cb2eee325640e9506",
"slug": "mlb-kc-sea-2026-05-02-nrfi",
"resolutionSource": "https://www.mlb.com/scores",
"endDate": "2026-05-10T01:40:00Z",
"liquidity": "445.5065",
"startDate": "2026-04-26T13:03:41.663067Z",
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"description": "In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 2 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 Kansas City Royals or Seattle Mariners.\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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"outcomePrices": "[\"0.48\", \"0.52\"]",
"volume": "196.509088",
"active": true,
"closed": false,
"marketMakerAddress": "",
"createdAt": "2026-04-26T13:00:36.727546Z",
"updatedAt": "2026-05-03T01:41:54.271889Z",
"new": false,
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"submitted_by": "0x91430CaD2d3975766499717fA0D66A78D814E5c5",
"archived": false,
"resolvedBy": "0x65070BE91477460D8A7AeEb94ef92fe056C2f2A7",
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"groupItemTitle": "NRFI",
"groupItemThreshold": "3",
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"orderMinSize": 5,
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"liquidityNum": 445.5065,
"endDateIso": "2026-05-10",
"startDateIso": "2026-04-26",
"hasReviewedDates": true,
"volume24hr": 196.509088,
"volume1wk": 196.509088,
"volume1mo": 196.509088,
"volume1yr": 196.509088,
"gameStartTime": "2026-05-03 01:40:00+00",
"secondsDelay": 1,
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"acceptingOrdersTimestamp": "2026-04-26T13:02:38Z",
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{
"id": "2141503",
"question": "Spread: Kansas City Royals (-1.5)",
"conditionId": "0x3269c36be4eb061f57d110fa284621df0e461fcb8438e107dd16ec74f7dd6835",
"slug": "mlb-kc-sea-2026-05-02-spread-away-1pt5",
"resolutionSource": "https://www.mlb.com/scores",
"endDate": "2026-05-03T01:40:00Z",
"liquidity": "2528.9286",
"startDate": "2026-05-02T17:08:23.572305Z",
"image": "https://polymarket-upload.s3.us-east-2.amazonaws.com/Repetitive-markets/MLB.jpg",
"icon": "https://polymarket-upload.s3.us-east-2.amazonaws.com/Repetitive-markets/MLB.jpg",
"description": "In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 2 at 9:40 PM ET:\n\nThis market will resolve to \"Kansas City Royals\" if the Kansas City Royals win the game by 2 or more runs.\n\nOtherwise, this market will resolve to \"Seattle Mariners\". If the game ends in a tie, this market will resolve to \"Seattle Mariners\".\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.",
"outcomes": "[\"Kansas City Royals\", \"Seattle Mariners\"]",
"outcomePrices": "[\"0.32\", \"0.68\"]",
"volume": "560.271819",
"active": true,
"closed": false,
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"volume1mo": 560.271819,
"volume1yr": 560.271819,
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"makerBaseFee": 1000,
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"cyom": false,
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"sportsMarketType": "spreads",
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"umaResolutionStatuses": "[]",
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"deployingTimestamp": "2026-05-02T17:05:20.491075Z",
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{
"id": "2141504",
"question": "Kansas City Royals vs. Seattle Mariners: O/U 7.5",
"conditionId": "0x0a4fb9cb794cfca21c0d3760bc01d7bbc1c75ec26a804f3ab6529fe9652e6d95",
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"resolutionSource": "https://www.mlb.com/scores",
"endDate": "2026-05-03T01:40:00Z",
"liquidity": "6706.5989",
"startDate": "2026-05-02T17:08:49.463965Z",
"image": "https://polymarket-upload.s3.us-east-2.amazonaws.com/Repetitive-markets/MLB.jpg",
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"description": "In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 2 at 9:40 PM ET:\n\nThis market will resolve to \"Over\" if the Kansas City Royals and Seattle Mariners combine to score 8 or more runs in this game.\n\nIf the combined total is less than 8, 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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{
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"question": "Kansas City Royals vs. Seattle Mariners: O/U 8.5",
"conditionId": "0x6a8a038517f2ca8195f3b10848dc221d9d458ca5b27965a2a93f4733d90c21f4",
"slug": "mlb-kc-sea-2026-05-02-total-8pt5",
"resolutionSource": "https://www.mlb.com/scores",
"endDate": "2026-05-03T01:40:00Z",
"liquidity": "2991.199",
"startDate": "2026-05-02T19:08:04.158812Z",
"image": "https://polymarket-upload.s3.us-east-2.amazonaws.com/Repetitive-markets/MLB.jpg",
"icon": "https://polymarket-upload.s3.us-east-2.amazonaws.com/Repetitive-markets/MLB.jpg",
"description": "In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 2 at 9:40 PM ET:\n\nThis market will resolve to \"Over\" if the Kansas City Royals and Seattle Mariners combine to score 9 or more runs in this game.\n\nIf the combined total is less than 9, 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.",
"outcomes": "[\"Over\", \"Under\"]",
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"volume": "1023.871161",
"active": true,
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"marketMakerAddress": "",
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"updatedAt": "2026-05-03T01:41:11.480726Z",
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"archived": false,
"resolvedBy": "0x65070BE91477460D8A7AeEb94ef92fe056C2f2A7",
"restricted": true,
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