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 · Oilers vs. Islanders: O/U 4.5 — Over
Loading selected book…
—
Rules
In the upcoming NHL game, scheduled for October 31 at 2:00PM ET: If the Oilers win, the market will resolve to "Oilers".
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/polymarket/nhl-edm-nyi-2026-10-31AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+10 more outcomes
+8 more outcomes
+8 more outcomes