
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 · December 31
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Rules
This market will resolve to "Yes" if the Supreme Court of the United States grants certiorari in a case explicitly concerning the legality, regulation, or jurisdictional authority over sports event contracts by the named outcome, 2026, 11:59 PM ET.
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/polymarket/scotus-accepts-sports-event-contract-case-by-july-31-2026AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+9 more outcomes
+12 more outcomes
+4 more outcomes
+6 more outcomes
+7 more outcomes