2026 Wisconsin · U.S. House

WI-01 House race odds

As of Oct 3, 2026, prediction markets give Republican Bryan Steil a 67% chance of winning the 2026 race for WI-01 over Democrat Mitchell Berman (Kalshi 67%, Polymarket 67%).

Updated · prices refresh every 10 minutes

Mitchell Berman (D)33%
Bryan Steil (R) 67%
Market rating
Lean R
Kalshi (D / R)
33.3% / 66.7%
Polymarket (D / R)
33.5% / 66.5%
Gap between exchanges
0.2 pts
Election Day
Nov 3, 2026 (32 days)

Price history

Democratic odds fell 7.0 points over the past 3 months, from 40% to 33%.

0%25%50%75%100%Jul 5Aug 19Oct 3
KalshiPolymarketDemocratic odds, Jul 5 – Oct 3

Every candidate, by exchange

Each exchange's prices rescaled to add up to 100%. Kalshi prices are the bid–ask midpoint; Polymarket prices are its displayed price.

Kalshi open market ↗

OutcomeChanceVolume
Bryan Steil (R)66.7%$11K
Mitchell Berman (D)33.3%$18K

Polymarket open market ↗

OutcomeChanceVolume
Bryan Steil (R)66.5%$6K
Mitchell Berman (D)33.5%$7K

Questions about this race

Who is favored to win the 2026 WI-01 House race?

As of Oct 3, 2026, prediction markets give Republican Bryan Steil a 67% chance of winning the 2026 race for WI-01 over Democrat Mitchell Berman (Kalshi 67%, Polymarket 67%).

What do Kalshi and Polymarket say?

Kalshi: Democrats 33%, Republicans 67%. Polymarket: Democrats 34%, Republicans 67%. The two exchanges differ by 0.2 points.

How have the odds moved this week?

Democratic odds are essentially unchanged since Sep 26, 2026.

When is the 2026 election?

Election Day is Nov 3, 2026, 32 days from now.

Other Wisconsin races in 2026

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Data

Price history (JSON)All 2026 races (JSON)All 2026 races (CSV)2026 dashboardMethodology

Cite as: Parlay the People, “2026 WI-01 House race,” https://parlaythepeople.com/2026/house/wi-1/, accessed Oct 3, 2026. Prediction-market prices are crowd forecasts, not certainties, and nothing here is betting or investment advice.