Tom Tiffany
Andy Manske
Sean Duffy
Tommy Thompson
Rebecca KleefischWisconsin Governor Republican Primary Winner
Updated 2 months ago
Winner: Tom Tiffanyon Aug 28, 2026
WinnerBefore the result
As it stood on Jul 31, 2026, 28 days before the result
Polymarket prices Tom Tiffany at 97% to win the Wisconsin GOP gubernatorial primary on August 11, reflecting overwhelming party consensus. Tiffany secured the state party's endorsement, has Trump backing and strongest fundraising, while facing only Washington County Executive Josh Schoemann (1%) as his Republican opponent after a more viable challenger dropped out in September 2025. The race is effectively decided, with Tiffany heavily positioned for a general-election matchup against likely Democratic nominee Francesca Hong.
Before Wisconsin Governor Republican Primary Winner ended, the final Polymarket odds were: Tom Tiffany: 100%. These probabilities were derived from real-money trading right up until the market closed.
No — this market has ended on Polymarket. PredictMarketCap tracks thousands of active markets across Polymarket, Kalshi, Limitless & Predict.fun if you're looking for what's live now.
Prediction market odds reflect the aggregate opinion of traders who risk real money on outcomes. The price of a share (e.g., 65¢) represents the market's implied probability (65%). Prices move as traders buy and sell based on new information, polls, and analysis.
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