Japan B League
Leader sits at 49% across 7 bound outcomes, runner-up at 49%. This is a winner-take-all market — the headline is the leader’s price, not an arithmetic mean.
Leader probability
Winner: Gunma Crane Thunders
Outcomes
7
winner-take-all
Runner-up
49¢
Winner: Utsunomiya Brex
Spread
0pp
contested
24h volume
$0
thin orderbook
Closes
Jun 7, 2026
29 days
Venue
Polymarket
7 bound
30-day trend
Bracket family
How the bracket ladder is priced.
Each row is one outcome on the venue. Sorted by 24h volume — the heaviest book is at the top.
Cluster 1
Japan B League: Winner
Japan B League: Winner: Chiba Jets
0xd07064…b6da
Japan B League: Winner: Utsunomiya Brex
0x89faa4…b864
Japan B League: Winner: Seahorses Mikawa
0xcfe7cc…ad9f
Japan B League: Winner: Nagoya Diamond Dolphins
0xf8a8cc…1779
Japan B League: Winner: Nagasaki Velca
0xafdeb4…4d20
Japan B League: Winner: Ryukyu Golden Kings
0x2980bb…ecb6
Japan B League: Winner: Gunma Crane Thunders
0x43a367…c764
Analysis
This represents the market's assessment of which team will win the Japan B League championship this season. The current probability reflects significant uncertainty, with Ryukyu Golden Kings priced as the leading candidate at 50 cents but facing close competition from other contenders like Yokohama B-Corsairs and Levanga Hokkaido, all trading within a narrow 42-50 cent range. The probability would shift based on team performance during the regular season, injury status of key players, and head-to-head matchup results. The playoff tournament scheduled for later in the 2026 season will provide the ultimate resolution, with each team's playoff seeding and momentum becoming critical factors as the market approaches that event.
- ›Ryukyu Golden Kings currently implied as favorite at 50 cents despite similar pricing to other top contenders, suggesting marginal market confidence
- ›Yokohama B-Corsairs and Levanga Hokkaido within 4-8 cent range, indicating market views them as legitimate alternatives rather than long shots
- ›Zero trading volume in past 24 hours across listed contracts suggests low current liquidity and potential for repricing based on new information
- ›Regular season performance through spring/early summer 2026 will establish win-loss records that inform playoff positioning and championship probability
- ›Historical championship patterns and prior-season roster changes for each team form baseline expectations reflected in current pricing
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These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.
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In general
How we compute these odds
SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.
For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.
Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.
Last updated on this page: 3 min ago.