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St. Louis Cardinals vs. Miami Marlins
Prediction market · Polymarket
Overview
In the upcoming MLB game between the St. Louis Cardinals and Miami Marlins, scheduled for April 20 at 6:40PM ET: This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game. This market will resolve to "Miami Marlins" if the Miami Marlins 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-stl-mia-2026-04-20
Volume
476.4K
24h volume
462.9K
1w volume
476.4K
Open interest
291.5K
Liquidity
—
Start
Apr 14, 2026
End
Apr 27, 2026
Status
Closed
Access
Restricted
Created
Apr 20, 2026
Resolution source
https://www.mlb.com/
Event ID
378408
Slug
mlb-stl-mia-2026-04-20
Markets
10
Raw event data
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"id": "378408",
"ticker": "mlb-stl-mia-2026-04-20",
"slug": "mlb-stl-mia-2026-04-20",
"title": "St. Louis Cardinals vs. Miami Marlins",
"description": "In the upcoming MLB game between the St. Louis Cardinals and Miami Marlins, scheduled for April 20 at 6:40PM ET:\n\nThis market will resolve to \"St. Louis Cardinals\" if the St. Louis Cardinals win the game.\n\nThis market will resolve to \"Miami Marlins\" if the Miami Marlins 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.",
"resolutionSource": "https://www.mlb.com/",
"startDate": "2026-04-14T13:06:21.983171Z",
"creationDate": "2026-04-20T22:40:00Z",
"endDate": "2026-04-27T22:40:00Z",
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"active": true,
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"createdAt": "2026-04-14T13:00:19.084124Z",
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{
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"description": "In the upcoming MLB game between the St. Louis Cardinals and Miami Marlins, scheduled for April 20 at 6:40PM ET:\n\nThis market will resolve to \"St. Louis Cardinals\" if the St. Louis Cardinals win the game.\n\nThis market will resolve to \"Miami Marlins\" if the Miami Marlins 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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"volume1mo": 274837.6768109999,
"volume1yr": 274837.6768109999,
"gameStartTime": "2026-04-20 22:40:00+00",
"secondsDelay": 1,
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"question": "Will there be a run scored in the first inning?: St. Louis Cardinals vs. Miami Marlins",
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"resolutionSource": "https://www.mlb.com/scores",
"endDate": "2026-04-27T22:40:00Z",
"liquidity": "0",
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"icon": "https://polymarket-upload.s3.us-east-2.amazonaws.com/Repetitive-markets/MLB.jpg",
"description": "In the upcoming MLB game between the St. Louis Cardinals and Miami Marlins, scheduled for April 20 at 6:40 PM ET:\n\nThis market will resolve to \"Yes\" if at least one run is scored in the 1st inning by either the St. Louis Cardinals or Miami Marlins.\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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"volume": "1373.769522",
"active": true,
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"marketMakerAddress": "",
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"updatedAt": "2026-04-21T01:53:10.479962Z",
"closedTime": "2026-04-21 01:51:50+00",
"new": false,
"featured": false,
"submitted_by": "0x91430CaD2d3975766499717fA0D66A78D814E5c5",
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"resolvedBy": "0x65070BE91477460D8A7AeEb94ef92fe056C2f2A7",
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"liquidityNum": 0,
"endDateIso": "2026-04-27",
"startDateIso": "2026-04-14",
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"volume24hr": 1373.769522,
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"gameStartTime": "2026-04-20 22:40:00+00",
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"holdingRewardsEnabled": false,
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{
"id": "2038152",
"question": "Spread: St. Louis Cardinals (-1.5)",
"conditionId": "0x25b740d2750a9c55204862aa7d3f3eb51b7899d1f7f486927be6d861c9f93996",
"slug": "mlb-stl-mia-2026-04-20-spread-away-1pt5",
"resolutionSource": "https://www.mlb.com/scores",
"endDate": "2026-04-20T22:40:00Z",
"liquidity": "0",
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"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 St. Louis Cardinals and Miami Marlins, scheduled for April 20 at 6:40 PM ET:\n\nThis market will resolve to \"St. Louis Cardinals\" if the St. Louis Cardinals win the game by 2 or more runs.\n\nOtherwise, this market will resolve to \"Miami Marlins\". If the game ends in a tie, this market will resolve to \"Miami Marlins\".\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": "[\"St. Louis Cardinals\", \"Miami Marlins\"]",
"outcomePrices": "[\"0\", \"1\"]",
"volume": "920.7884869999999",
"active": true,
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"gameStartTime": "2026-04-20 22:40:00+00",
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"line": -1.5,
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"deployingTimestamp": "2026-04-20T22:44:14.355128Z",
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{
"id": "2038153",
"question": "St. Louis Cardinals vs. Miami Marlins: O/U 9.5",
"conditionId": "0x17681c78eb54a247ec7db26b244952d26811b79b5e86516e191dc17d3f78a83c",
"slug": "mlb-stl-mia-2026-04-20-total-9pt5",
"resolutionSource": "https://www.mlb.com/scores",
"endDate": "2026-04-20T22:40:00Z",
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"description": "In the upcoming MLB game between the St. Louis Cardinals and Miami Marlins, scheduled for April 20 at 6:40 PM ET:\n\nThis market will resolve to \"Over\" if the St. Louis Cardinals and Miami Marlins 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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"deployingTimestamp": "2026-04-20T22:44:14.357636Z",
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{
"id": "2039264",
"question": "Spread: Miami Marlins (-2.5)",
"conditionId": "0x65ecd426136821321e8d9310ed6e5a457d8b36d0fa53a2d36b61a340a92d00ec",
"slug": "mlb-stl-mia-2026-04-20-spread-home-2pt5",
"resolutionSource": "https://www.mlb.com/scores",
"endDate": "2026-04-20T22:40:00Z",
"liquidity": "0",
"startDate": "2026-04-21T00:34:35.573269Z",
"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 St. Louis Cardinals and Miami Marlins, scheduled for April 20 at 6:40 PM ET:\n\nThis market will resolve to \"Miami Marlins\" if the Miami Marlins win the game by 3 or more runs.\n\nOtherwise, this market will resolve to \"St. Louis Cardinals\". If the game ends in a tie, this market will resolve to \"St. Louis Cardinals\".\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": "[\"Miami Marlins\", \"St. Louis Cardinals\"]",
"outcomePrices": "[\"0\", \"1\"]",
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"active": true,
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"marketMakerAddress": "",
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}- Spread: Miami Marlins (-1.5)Vol 20.6KLiq —End Apr 20, 2026Closed
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