Trends
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
Related Markets
Related questions for context, not a comparison of equivalent contracts.
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Rules
This market refers to the tennis match between the named outcome and Rei Sakamoto in the Japan Open Tennis Championships, originally scheduled for September 29, 2026 at 9:00PM ET.
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/polymarket/atp-arnaldi-sakamot-2026-09-29AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+29 more outcomes
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