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 · Helioevaara/Patten
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
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Who will win the 2026 Rolex Paris Masters?
Rules
This market refers to the doubles tennis match between Helioevaara/Patten and Halys/Herbert in the Rolex Paris Masters, originally scheduled for November 7, 2026 at 12:30PM ET.
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/polymarket/atp-doubles-helipat-halyher-2026-11-07AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+97 more outcomes
+29 more outcomes