Houston Astros vs. Baltimore Orioles

Prediction market · Polymarket

Overview

In the upcoming MLB game between the Houston Astros and Baltimore Orioles, scheduled for April 29 at 6:35PM ET: This market will resolve to "Houston Astros" if the Houston Astros win the game. This market will resolve to "Baltimore Orioles" if the Baltimore Orioles 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-hou-bal-2026-04-29

Volume

191

24h volume

191

1w volume

191

Open interest

96

Liquidity

37.9K

Liquidity CLOB

37.9K

Start

Apr 23, 2026

End

May 6, 2026

Status

Active

Access

Restricted

Created

Apr 29, 2026

Resolution source

https://www.mlb.com/

Event ID

409824

Slug

mlb-hou-bal-2026-04-29

Markets

2

Raw event data
{
  "id": "409824",
  "ticker": "mlb-hou-bal-2026-04-29",
  "slug": "mlb-hou-bal-2026-04-29",
  "title": "Houston Astros vs. Baltimore Orioles",
  "description": "In the upcoming MLB game between the Houston Astros and Baltimore Orioles, scheduled for April 29 at 6:35PM ET:\n\nThis market will resolve to \"Houston Astros\" if the Houston Astros win the game.\n\nThis market will resolve to \"Baltimore Orioles\" if the Baltimore Orioles 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": "2026-04-23T13:13:29.073413Z",
  "creationDate": "2026-04-29T22:35:00Z",
  "endDate": "2026-05-06T22:35:00Z",
  "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",
  "active": true,
  "closed": false,
  "archived": false,
  "new": false,
  "featured": false,
  "restricted": true,
  "liquidity": 37917.6309,
  "volume": 191.149229,
  "openInterest": 96.269229,
  "createdAt": "2026-04-23T13:00:24.7018Z",
  "updatedAt": "2026-04-28T02:31:08.26708Z",
  "competitive": 0.9999750006249843,
  "volume24hr": 191.149229,
  "volume1wk": 191.149229,
  "volume1mo": 191.149229,
  "volume1yr": 191.149229,
  "enableOrderBook": true,
  "liquidityClob": 37917.6309,
  "negRisk": false,
  "commentCount": 0,
  "markets": [
    {
      "id": "2059818",
      "question": "Houston Astros vs. Baltimore Orioles",
      "conditionId": "0x1fac9cfdb6e73583ec1db4f07850d195c9b871431b18d02762c8d73254b79440",
      "slug": "mlb-hou-bal-2026-04-29",
      "resolutionSource": "https://www.mlb.com/",
      "endDate": "2026-05-06T22:35:00Z",
      "liquidity": "36797.5765",
      "startDate": "2026-04-23T13:08:19.578955Z",
      "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 Houston Astros and Baltimore Orioles, scheduled for April 29 at 6:35PM ET:\n\nThis market will resolve to \"Houston Astros\" if the Houston Astros win the game.\n\nThis market will resolve to \"Baltimore Orioles\" if the Baltimore Orioles 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.",
      "outcomes": "[\"Houston Astros\", \"Baltimore Orioles\"]",
      "outcomePrices": "[\"0.495\", \"0.505\"]",
      "volume": "191.149229",
      "active": true,
      "closed": false,
      "marketMakerAddress": "",
      "createdAt": "2026-04-23T13:00:24.843153Z",
      "updatedAt": "2026-04-28T02:30:10.558147Z",
      "new": false,
      "featured": false,
      "submitted_by": "0x91430CaD2d3975766499717fA0D66A78D814E5c5",
      "archived": false,
      "resolvedBy": "0x65070BE91477460D8A7AeEb94ef92fe056C2f2A7",
      "restricted": true,
      "groupItemThreshold": "0",
      "questionID": "0xb0c52bb1d09ef5789ed95b7baf958d9a46c58d14b8bd490840e0488d194c6be2",
      "enableOrderBook": true,
      "orderPriceMinTickSize": 0.01,
      "orderMinSize": 5,
      "volumeNum": 191.149229,
      "liquidityNum": 36797.5765,
      "endDateIso": "2026-05-06",
      "startDateIso": "2026-04-23",
      "hasReviewedDates": true,
      "volume24hr": 191.149229,
      "volume1wk": 191.149229,
      "volume1mo": 191.149229,
      "volume1yr": 191.149229,
      "gameStartTime": "2026-04-29 22:35:00+00",
      "secondsDelay": 1,
      "clobTokenIds": "[\"33498407544673870185859415196458354045889468766278976342108280985243917883436\", \"22752053404993046555427253943167952864821255781975997162537379807123717913707\"]",
      "umaBond": "500",
      "umaReward": "2",
      "volume24hrClob": 191.149229,
      "volume1wkClob": 191.149229,
      "volume1moClob": 191.149229,
      "volume1yrClob": 191.149229,
      "volumeClob": 191.149229,
      "liquidityClob": 36797.5765,
      "makerBaseFee": 1000,
      "takerBaseFee": 1000,
      "customLiveness": 1800,
      "acceptingOrders": true,
      "negRisk": false,
      "negRiskRequestID": "",
      "ready": false,
      "funded": false,
      "acceptingOrdersTimestamp": "2026-04-23T13:07:16Z",
      "cyom": false,
      "competitive": 0.9999750006249843,
      "pagerDutyNotificationEnabled": false,
      "approved": true,
      "rewardsMinSize": 50,
      "rewardsMaxSpread": 4.5,
      "spread": 0.03,
      "oneDayPriceChange": 0.035,
      "oneHourPriceChange": 0.005,
      "lastTradePrice": 0.48,
      "bestBid": 0.48,
      "bestAsk": 0.51,
      "automaticallyActive": true,
      "clearBookOnStart": true,
      "manualActivation": false,
      "negRiskOther": false,
      "sportsMarketType": "moneyline",
      "umaResolutionStatuses": "[]",
      "pendingDeployment": false,
      "deploying": false,
      "deployingTimestamp": "2026-04-23T13:00:31.416098Z",
      "rfqEnabled": false,
      "holdingRewardsEnabled": false,
      "feesEnabled": true,
      "requiresTranslation": false,
      "feeType": "sports_fees_v2",
      "feeSchedule": {
        "exponent": 1,
        "rate": 0.03,
        "takerOnly": true,
        "rebateRate": 0.25
      }
    },
    {
      "id": "2059821",
      "question": "Will there be a run scored in the first inning?: Houston Astros vs. Baltimore Orioles",
      "conditionId": "0xd3749531008bfdfbf1c7411823ac64f3febc44d0424ff9bda4f1bea7be7528e7",
      "slug": "mlb-hou-bal-2026-04-29-nrfi",
      "resolutionSource": "https://www.mlb.com/scores",
      "endDate": "2026-05-06T22:35:00Z",
      "liquidity": "218.686",
      "startDate": "2026-04-23T13:03:07.77486Z",
      "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 Houston Astros and Baltimore Orioles, scheduled for April 29 at 6:35 PM ET:\n\nThis market will resolve to \"Yes\" if at least one run is scored in the 1st inning by either the Houston Astros or Baltimore Orioles.\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.",
      "outcomes": "[\"Yes\", \"No\"]",
      "outcomePrices": "[\"0.475\", \"0.525\"]",
      "active": true,
      "closed": false,
      "marketMakerAddress": "",
      "createdAt": "2026-04-23T13:00:25.024808Z",
      "updatedAt": "2026-04-28T02:29:45.028135Z",
      "new": false,
      "featured": false,
      "submitted_by": "0x91430CaD2d3975766499717fA0D66A78D814E5c5",
      "archived": false,
      "resolvedBy": "0x65070BE91477460D8A7AeEb94ef92fe056C2f2A7",
      "restricted": true,
      "groupItemTitle": "NRFI",
      "groupItemThreshold": "3",
      "questionID": "0xd25d64333f2cee44b2b7985689c121ab487054a7904c03b32541f5f94e0f9996",
      "enableOrderBook": true,
      "orderPriceMinTickSize": 0.01,
      "orderMinSize": 5,
      "liquidityNum": 218.686,
      "endDateIso": "2026-05-06",
      "startDateIso": "2026-04-23",
      "hasReviewedDates": true,
      "gameStartTime": "2026-04-29 22:35:00+00",
      "secondsDelay": 1,
      "clobTokenIds": "[\"19524502380041390175484578604764826152378605856839627291922614970920990613950\", \"78663431289434205916567384412080815813061778465704025560742530831376881619178\"]",
      "umaBond": "500",
      "umaReward": "2",
      "liquidityClob": 218.686,
      "makerBaseFee": 1000,
      "takerBaseFee": 1000,
      "customLiveness": 1800,
      "acceptingOrders": true,
      "negRisk": false,
      "negRiskRequestID": "",
      "ready": false,
      "funded": false,
      "acceptingOrdersTimestamp": "2026-04-23T13:02:04Z",
      "cyom": false,
      "competitive": 0.5896314803247971,
      "pagerDutyNotificationEnabled": false,
      "approved": true,
      "rewardsMinSize": 50,
      "rewardsMaxSpread": 4.5,
      "spread": 0.41,
      "oneDayPriceChange": 0.025,
      "oneHourPriceChange": -0.025,
      "bestBid": 0.27,
      "bestAsk": 0.68,
      "automaticallyActive": true,
      "clearBookOnStart": true,
      "manualActivation": false,
      "negRiskOther": false,
      "sportsMarketType": "nrfi",
      "umaResolutionStatuses": "[]",
      "pendingDeployment": false,
      "deploying": false,
      "deployingTimestamp": "2026-04-23T13:00:31.425056Z",
      "rfqEnabled": false,
      "holdingRewardsEnabled": false,
      "feesEnabled": true,
      "requiresTranslation": false,
      "feeType": "sports_fees_v2",
      "feeSchedule": {
        "exponent": 1,
        "rate": 0.03,
        "takerOnly": true,
        "rebateRate": 0.25
      }
    }
  ],
  "series": [
    {
      "id": "3",
      "ticker": "mlb",
      "slug": "mlb",
      "title": "MLB",
      "seriesType": "single",
      "recurrence": "daily",
      "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",
      "layout": "default",
      "active": true,
      "closed": false,
      "archived": false,
      "new": false,
      "featured": false,
      "restricted": true,
      "publishedAt": "2022-10-13 00:37:11.511+00",
      "createdBy": "15",
      "updatedBy": "15",
      "createdAt": "2022-10-13T00:37:01.013Z",
      "updatedAt": "2026-04-28T02:31:22.855361Z",
      "commentsEnabled": false,
      "competitive": "0",
      "volume24hr": 4063487.432282001,
      "volume": 2715572.0946670035,
      "liquidity": 10915761.23397,
      "startDate": "2021-01-01T17:00:00Z",
      "commentCount": 6065,
      "requiresTranslation": false
    }
  ],
  "tags": [
    {
      "id": "1",
      "label": "Sports",
      "slug": "sports",
      "forceShow": false,
      "publishedAt": "2023-10-24 22:37:50.296+00",
      "updatedBy": 15,
      "createdAt": "2023-10-24T22:37:50.31Z",
      "updatedAt": "2026-04-17T20:47:16.461062Z",
      "forceHide": true,
      "requiresTranslation": false
    },
    {
      "id": "100639",
      "label": "Games",
      "slug": "games",
      "forceShow": false,
      "createdAt": "2024-09-23T22:41:37.670714Z",
      "updatedAt": "2026-03-09T22:28:03.358133Z",
      "requiresTranslation": false
    },
    {
      "id": "100381",
      "label": "MLB",
      "slug": "mlb",
      "createdAt": "2024-08-27T16:42:20.841409Z",
      "updatedAt": "2026-04-17T20:23:34.251722Z",
      "requiresTranslation": false
    },
    {
      "id": "678",
      "label": "baseball",
      "slug": "baseball",
      "publishedAt": "2023-12-08 16:24:40.695+00",
      "createdAt": "2023-12-08T16:24:40.771Z",
      "updatedAt": "2026-04-17T20:45:56.084941Z",
      "requiresTranslation": false
    }
  ],
  "cyom": false,
  "showAllOutcomes": true,
  "showMarketImages": false,
  "enableNegRisk": false,
  "automaticallyActive": true,
  "eventDate": "2026-04-29",
  "startTime": "2026-04-29T22:35:00Z",
  "eventWeek": 6,
  "seriesSlug": "mlb",
  "negRiskAugmented": false,
  "pendingDeployment": false,
  "deploying": false,
  "gameId": 10077738,
  "requiresTranslation": false,
  "eventMetadata": {
    "context_description": "The Houston Astros face the Baltimore Orioles in the opener of a three-game series at Oriole Park at Camden Yards on April 28, with probable starters Kai-Wei Teng (1-1, 2.16 ERA) for Houston against Shane Baz (0-2, 5.08 ERA) for Baltimore, giving the visitors a potential rotation edge amid both teams' injury woes. Astros' injury list has ballooned recently—Cristian Javier (60-day IL, shoulder), Josh Hader (60-day IL, biceps), Taylor Trammell (groin), and Jake Meyers (oblique)—compounding their sluggish start to 2026, while Orioles miss Jackson Holliday (finger), Heston Kjerstad (hamstring), Adley Rutschman (ankle), and Ryan Mountcastle (foot). Baltimore holds home-field advantage and a middling AL East standing around 13-15, but Yordan Alvarez's franchise-tying 11 homers in 28 games bolster Houston's offense. Recent form and bullpen depth will be pivotal factors.",
    "context_requires_regen": false,
    "context_updated_at": "2026-04-28T00:26:57.850Z"
  },
  "teams": [
    {
      "id": 114230,
      "name": "Houston Astros",
      "league": "mlb",
      "record": "11-18",
      "logo": "https://polymarket-upload.s3.us-east-2.amazonaws.com/Houston Astros-240401d51d.png",
      "abbreviation": "hou",
      "alias": "Astros",
      "createdAt": "2025-03-31T18:20:34.051129Z",
      "updatedAt": "2026-03-27T09:00:01.960993Z",
      "providerId": 30,
      "color": "#004AA2"
    },
    {
      "id": 114217,
      "name": "Baltimore Orioles",
      "league": "mlb",
      "record": "13-15",
      "logo": "https://polymarket-upload.s3.us-east-2.amazonaws.com/b0-015836221f.png",
      "abbreviation": "bal",
      "alias": "Orioles",
      "createdAt": "2025-03-31T18:20:34.051129Z",
      "updatedAt": "2026-03-19T12:30:01.096697Z",
      "providerId": 19,
      "color": "#C04000"
    }
  ]
}