Koshigaya Alphas vs. Alvark Tokyo

Prediction market · Polymarket

Overview

In the upcoming Japan B League game, scheduled for April 18 at 2:05AM ET: If the Koshigaya Alphas win, the market will resolve to "Koshigaya Alphas". If the Alvark Tokyo win, the market will resolve to "Alvark Tokyo". 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. The result will be determined based on the final score including any overtime periods.

Ticker

bkjpn-kos-alv-2026-04-18

Volume

3.8K

24h volume

3.7K

1w volume

3.8K

Open interest

2.9K

Liquidity

0

Liquidity AMM

0

Liquidity CLOB

0

Start

Apr 11, 2026

End

Apr 25, 2026

Status

Closed

Access

Restricted

Created

Apr 18, 2026

Resolution source

https://www.bleague.jp/en/

Event ID

366922

Slug

bkjpn-kos-alv-2026-04-18

Markets

1

Raw event data
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  "id": "366922",
  "ticker": "bkjpn-kos-alv-2026-04-18",
  "slug": "bkjpn-kos-alv-2026-04-18",
  "title": "Koshigaya Alphas vs. Alvark Tokyo",
  "description": "In the upcoming Japan B League game, scheduled for April 18 at 2:05AM ET:\nIf the Koshigaya Alphas win, the market will resolve to \"Koshigaya Alphas\".\nIf the Alvark Tokyo win, the market will resolve to \"Alvark Tokyo\".\nIf the game is postponed, this market will remain open until the game has been completed.\nIf the game is canceled entirely, with no make-up game, this market will resolve 50-50.\nThe result will be determined based on the final score including any overtime periods.",
  "resolutionSource": "https://www.bleague.jp/en/",
  "startDate": "2026-04-11T07:36:22.642404Z",
  "creationDate": "2026-04-18T06:05:00Z",
  "endDate": "2026-04-25T06:05:00Z",
  "image": "https://polymarket-upload.s3.us-east-2.amazonaws.com/super+cool+basketball+in+red+and+blue+wow.png",
  "icon": "https://polymarket-upload.s3.us-east-2.amazonaws.com/super+cool+basketball+in+red+and+blue+wow.png",
  "active": true,
  "closed": true,
  "archived": false,
  "new": false,
  "featured": false,
  "restricted": true,
  "liquidity": 0,
  "volume": 3787.9537309999996,
  "openInterest": 2933.580803,
  "createdAt": "2026-04-11T07:30:35.206184Z",
  "updatedAt": "2026-04-18T11:22:09.173015Z",
  "competitive": 0,
  "volume24hr": 3726.6659109999996,
  "volume1wk": 3787.953731,
  "volume1mo": 3787.953731,
  "volume1yr": 3787.953731,
  "enableOrderBook": true,
  "liquidityAmm": 0,
  "liquidityClob": 0,
  "negRisk": false,
  "commentCount": 0,
  "markets": [
    {
      "id": "1944910",
      "question": "Koshigaya Alphas vs. Alvark Tokyo",
      "conditionId": "0xdec33a218c6049eab07b43559cf8275d51be949c486f299d629852cd02baac54",
      "slug": "bkjpn-kos-alv-2026-04-18",
      "resolutionSource": "https://www.bleague.jp/en/",
      "endDate": "2026-04-25T06:05:00Z",
      "liquidity": "0",
      "startDate": "2026-04-11T07:33:09.241534Z",
      "image": "https://polymarket-upload.s3.us-east-2.amazonaws.com/super+cool+basketball+in+red+and+blue+wow.png",
      "icon": "https://polymarket-upload.s3.us-east-2.amazonaws.com/super+cool+basketball+in+red+and+blue+wow.png",
      "description": "In the upcoming Japan B League game, scheduled for April 18 at 2:05AM ET:\nIf the Koshigaya Alphas win, the market will resolve to \"Koshigaya Alphas\".\nIf the Alvark Tokyo win, the market will resolve to \"Alvark Tokyo\".\nIf the game is postponed, this market will remain open until the game has been completed.\nIf the game is canceled entirely, with no make-up game, this market will resolve 50-50.\nThe result will be determined based on the final score including any overtime periods.",
      "outcomes": "[\"Koshigaya Alphas\", \"Alvark Tokyo\"]",
      "outcomePrices": "[\"0\", \"1\"]",
      "volume": "3787.9537309999996",
      "active": true,
      "closed": true,
      "marketMakerAddress": "",
      "createdAt": "2026-04-11T07:30:35.306725Z",
      "updatedAt": "2026-04-18T10:28:53.083568Z",
      "closedTime": "2026-04-18 10:27:34+00",
      "new": false,
      "featured": false,
      "submitted_by": "0x91430CaD2d3975766499717fA0D66A78D814E5c5",
      "archived": false,
      "resolvedBy": "0x65070BE91477460D8A7AeEb94ef92fe056C2f2A7",
      "restricted": true,
      "groupItemThreshold": "0",
      "questionID": "0x78e673834be3290876d48f0fc1974f0f8086d9f4628bcbe5a10a8c2826213a29",
      "umaEndDate": "2026-04-18T10:27:34Z",
      "enableOrderBook": true,
      "orderPriceMinTickSize": 0.001,
      "orderMinSize": 5,
      "umaResolutionStatus": "resolved",
      "volumeNum": 3787.9537309999996,
      "liquidityNum": 0,
      "endDateIso": "2026-04-25",
      "startDateIso": "2026-04-11",
      "hasReviewedDates": true,
      "volume24hr": 3726.6659109999996,
      "volume1wk": 3787.953731,
      "volume1mo": 3787.953731,
      "volume1yr": 3787.953731,
      "gameStartTime": "2026-04-18 06:05:00+00",
      "secondsDelay": 3,
      "clobTokenIds": "[\"109169687057871562964253321289845598894314327397154633863528955410092362394917\", \"86806657456430789849888258989112526065829657879996479962295911311605718118943\"]",
      "umaBond": "500",
      "umaReward": "2",
      "volume24hrClob": 3726.6659109999996,
      "volume1wkClob": 3787.953731,
      "volume1moClob": 3787.953731,
      "volume1yrClob": 3787.953731,
      "volumeClob": 3787.9537309999996,
      "liquidityAmm": 0,
      "liquidityClob": 0,
      "makerBaseFee": 1000,
      "takerBaseFee": 1000,
      "customLiveness": 0,
      "acceptingOrders": false,
      "negRisk": false,
      "negRiskRequestID": "",
      "ready": false,
      "funded": false,
      "acceptingOrdersTimestamp": "2026-04-11T07:32:05Z",
      "cyom": false,
      "competitive": 0,
      "pagerDutyNotificationEnabled": false,
      "approved": true,
      "rewardsMinSize": 0,
      "rewardsMaxSpread": 0,
      "spread": 0.001,
      "automaticallyResolved": true,
      "oneDayPriceChange": -0.4445,
      "oneWeekPriceChange": -0.4995,
      "lastTradePrice": 0.15,
      "bestAsk": 0.001,
      "automaticallyActive": true,
      "clearBookOnStart": true,
      "manualActivation": false,
      "negRiskOther": false,
      "sportsMarketType": "moneyline",
      "umaResolutionStatuses": "[\"proposed\"]",
      "pendingDeployment": false,
      "deploying": false,
      "deployingTimestamp": "2026-04-11T07:30:49.700042Z",
      "rfqEnabled": false,
      "holdingRewardsEnabled": false,
      "feesEnabled": true,
      "requiresTranslation": false,
      "feeType": "sports_fees_v2",
      "feeSchedule": {
        "exponent": 1,
        "rate": 0.03,
        "takerOnly": true,
        "rebateRate": 0.25
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  ],
  "series": [
    {
      "id": "11470",
      "ticker": "bkjpn",
      "slug": "bkjpn",
      "title": "Japan B League",
      "seriesType": "single",
      "recurrence": "daily",
      "active": true,
      "closed": false,
      "archived": false,
      "featured": false,
      "restricted": true,
      "createdAt": "2026-03-27T00:10:24.743429Z",
      "updatedAt": "2026-04-18T12:31:35.031008Z",
      "volume24hr": 53666.236836,
      "volume": 4129.371190999999,
      "liquidity": 43223.83081,
      "commentCount": 0,
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  ],
  "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": "28",
      "label": "Basketball",
      "slug": "basketball",
      "forceShow": false,
      "publishedAt": "2023-11-02 21:04:25.152+00",
      "createdAt": "2023-11-02T21:04:25.158Z",
      "updatedAt": "2026-04-17T20:16:02.304942Z",
      "requiresTranslation": false
    },
    {
      "id": "104349",
      "label": "Japan B League",
      "slug": "bkjpn",
      "createdAt": "2026-03-27T00:10:24.836457Z",
      "updatedAt": "2026-04-17T20:32:29.101728Z",
      "requiresTranslation": false
    }
  ],
  "cyom": false,
  "closedTime": "2026-04-18T10:27:34Z",
  "showAllOutcomes": true,
  "showMarketImages": false,
  "automaticallyResolved": true,
  "enableNegRisk": false,
  "automaticallyActive": true,
  "eventDate": "2026-04-18",
  "startTime": "2026-04-18T06:05:00Z",
  "seriesSlug": "bkjpn",
  "period": "NS",
  "negRiskAugmented": false,
  "pendingDeployment": false,
  "deploying": false,
  "gameId": 4894978,
  "requiresTranslation": false,
  "eventMetadata": {
    "context_description": "Trader consensus reflects near-absolute confidence in Alvark Tokyo's victory at 100% implied probability, fueled by their commanding 2-0 head-to-head dominance over Koshigaya Alphas this season—winning by an average of 18.5 points (83-64.5)—and superior B.League standing as playoff contenders versus Koshigaya's 18th-place 16-28 record. Alvark boasts strong recent form, including road wins over Nagasaki Velca (91-70, 93-78), while Koshigaya's latest 87-70 upset at Ibaraki Robots does little to close the talent gap amid their poor ATS performance (20%). Home-court edge offers Koshigaya slim upset potential via hot shooting or Alvark injuries to key players like their leading scorers, though such scenarios remain highly improbable barring late scratches.",
    "context_requires_regen": true,
    "context_updated_at": "2026-04-18T09:59:40.715Z"
  },
  "teams": [
    {
      "id": 3270058,
      "name": "Koshigaya Alphas",
      "league": "bkjpn",
      "record": "0-0",
      "logo": "https://polymarket-upload.s3.us-east-2.amazonaws.com/Koshigaya Alphas-5e1ab3fce4.png",
      "abbreviation": "kos",
      "createdAt": "2026-04-01T07:31:11.159307Z",
      "updatedAt": "2026-04-10T09:00:01.5623Z",
      "providerId": 1667841,
      "color": "#852F47"
    },
    {
      "id": 3270051,
      "name": "Alvark Tokyo",
      "league": "bkjpn",
      "record": "0-0",
      "logo": "https://polymarket-upload.s3.us-east-2.amazonaws.com/Alvark Tokyo-7dddbd3a3f.png",
      "abbreviation": "alv",
      "createdAt": "2026-04-01T07:31:11.130588Z",
      "updatedAt": "2026-04-09T18:38:16.202234Z",
      "providerId": 165991,
      "color": "#e3000b"
    }
  ]
}