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 · Capitals vs. Predators: O/U 4.5 — Over
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Rules
In the upcoming NHL game, scheduled for October 29 at 8:00PM ET: If the Capitals win, the market will resolve to "Capitals".
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/polymarket/nhl-wsh-nsh-2026-10-29AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+40 more outcomes
+28 more outcomes