
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": {
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"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,
"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": "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"
}
]
}- Koshigaya Alphas vs. Alvark TokyoVol 3.8KLiq 0End Apr 25, 2026Closed