
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
Market depth · SeaHorses Mikawa
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
Rules
In the upcoming Japan B League game, scheduled for October 31 at 4:05AM ET: If the the named outcome win, the market will resolve to "the named outcome".
2 venues currently price this market. CoinRithm's cross-venue reference probability for SeaHorses Mikawa is 95%.
CoinRithm reference SeaHorses Mikawa 95% · 2 venues · 0 pt venue spread
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/polymarket/bkjpn-sea-sag-2026-10-31AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+97 more outcomes
+30 more outcomes
+28 more outcomes