Will the Republicans win the South Dakota Senate race in 2026?
Market price history
Rolling 7-day window of market YES price with the OU fair-price range overlay.
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Market price
YES95¢ (95%)
NO5¢ (5%)
Latest refresh · prices in cents
Polymarket • Volume: $4.1K • Updated 4h agoCloses:
Polymarket · Politics
OU's Pick
NO at 5¢ · pays 20×
Price gap
Polymarket5¢
→OU's fair5¢
Confidence
Moderate
Incumbent Republican Mike Rounds maintains a significant fundraising advantage and historical party dominance in a state where Democrats have not won a Senate seat since 2008.
Off market consensus
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