
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 · Arthur Fils
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Related questions for context, not a comparison of equivalent contracts.
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Rules
If Arthur Fils wins set 1 in the Alex Michelsen vs Arthur Fils professional tennis match in the 2026 ATP Basel Round Of 16, then the market resolves to Yes.
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/kalshi/kxatpsetwinner-26oct29micfil-1AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+97 more outcomes
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