
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: Kalshi
Informational venue terms only; CoinRithm paper trading uses its own rules.
Market depth · Before Nov 29, 2026
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Rules
If the first calendar day in the 2026-27 winter season on which Alta Ski Area conducts Seasonal Opening Operations occurs before Dec 13, 2026, then the market resolves to Yes.
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/kalshi/kxaltaopen-27AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+3 more outcomes
+8 more outcomes
+8 more outcomes
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+32 more outcomes
+3 more outcomes