
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 · Iowa
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
Closest Senate race in 2026?
Closest Senate race in 2026?
Which 2026 Senate race will be the closest?
Which party will win the 2026 Texas Senate race?
Which party will win the 2026 Kansas Senate race?
Will Republicans lose any "Safe Republican" Senate race?
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/polymarket/closest-senate-raceAI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+1 more outcomes
+17 more outcomes
+49 more outcomes
+16 more outcomes