# Japan B League

> Winner: Ryukyu Golden Kings leads at 49%, runner-up 49% across 7 winner-take-all outcomes — refreshed 3 min ago.

URL: https://simplefunctions.dev/odds/japan-b-league
Updated: 2026-05-09T05:05:38.519Z
Category: general
Status: active
Closes: 2026-06-07

## Headline

- Leader: Winner: Ryukyu Golden Kings at 49%
- Runner-up: Winner: Utsunomiya Brex at 49%
- Outcomes: 7 (winner-take-all)
- Venue: Polymarket (7 contracts)
- 24h volume: $0

## Bound contracts (7)

| Outcome | Price | 24h | Volume | Venue | Slug |
|---|---|---|---|---|---|
| Winner: Ryukyu Golden Kings | 49¢ | −1pp | $0 | polymarket | /markets/japan-b-league-winner-ryukyu-golden-kings-polymarket-0x2980bbf25af81e2af7c3ce7f6f1be07c377e062c61bef77db5b8e979a1f6ecb6 |
| Winner: Utsunomiya Brex | 49¢ | −1pp | $0 | polymarket | /markets/japan-b-league-winner-utsunomiya-brex-polymarket-0x89faa4d5c84d5a339fded3b20e437ba33980a937b36bd7b64eb9f45974bcb864 |
| Winner: Chiba Jets | 48¢ | ±0 | $0 | polymarket | /markets/japan-b-league-winner-chiba-jets-polymarket-0xd07064d22f289bccc8703632a45d05a35016f891a88dc16f5deb2a5158fbb6da |
| Winner: Gunma Crane Thunders | 48¢ | −1pp | $0 | polymarket | /markets/japan-b-league-winner-gunma-crane-thunders-polymarket-0x43a3672fb4d7678bec02cc4b523d61143ca1f746fd2eb7787501b454ea28c764 |
| Winner: Nagasaki Velca | 48¢ | −1pp | $0 | polymarket | /markets/japan-b-league-winner-nagasaki-velca-polymarket-0xafdeb4b2d0ffeabc46a1761142ea2c0ce53ecefb0652c25f05e359ca43ae4d20 |
| Winner: Nagoya Diamond Dolphins | 48¢ | +1pp | $0 | polymarket | /markets/japan-b-league-winner-nagoya-diamond-dolphins-polymarket-0xf8a8cc673fa0c9a15934f237e2b39cd590375380369d411d6bc4dea3a86c1779 |
| Winner: Seahorses Mikawa | 48¢ | +1pp | $0 | polymarket | /markets/japan-b-league-winner-seahorses-mikawa-polymarket-0xcfe7cc4805fb949c550d3c3482f56e14afaa76d7df16b57804fcf6c01e35ad9f |

## 30-day trajectory

| Day | Winner: Ryukyu Golden Kings | Winner: Utsunomiya Brex | Winner: Chiba Jets |
|---|---|---|---|
| 2026-04-26 | 49 | — | — |
| 2026-04-27 | 49 | 48 | — |
| 2026-04-28 | 49 | 49 | 49 |
| 2026-05-02 | 49 | 49 | 49 |
| 2026-05-09 | 48 | 48 | 49 |

_12 days of price history captured. Each row is the daily mean of intraday 5-min captures._

## 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.

### Key factors

- 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

## Methodology

Headline is the **leader's price**, not an arithmetic mean — averaging disjoint winner-take-all outcomes is meaningless. Per-outcome prices come from the venue's last-traded mid; cross-venue values are simple means across contracts on each venue.

## How to use this data

- HTML: https://simplefunctions.dev/odds/japan-b-league
- JSON: https://simplefunctions.dev/api/public/odds?slug=japan-b-league

## License

CC-BY-4.0. Attribute "SimpleFunctions" with a link to https://simplefunctions.dev. See https://simplefunctions.dev/legal for terms.