2026 California · U.S. House

CA-20 House race odds

As of Oct 3, 2026, prediction markets give Republican Vince Fong a 98% chance of winning the 2026 race for CA-20 over Democrat Sandra Van Scotter (Kalshi 98%, Polymarket 98%).

Updated · prices refresh every 10 minutes

Sandra Van Scotter (D)2%
Vince Fong (R) 98%
Market rating
Safe R
Kalshi (D / R)
2.3% / 97.7%
Polymarket (D / R)
2.0% / 98.0%
Gap between exchanges
0.4 pts
Election Day
Nov 3, 2026 (32 days)

Price history

Democratic odds fell 1.9 points over the past 3 months, from 4% to 2%.

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
Vince Fong (R)97.7%$638
Sandra Van Scotter (D)2.3%$4K

Polymarket open market ↗

OutcomeChanceVolume
Vince Fong (R)98.0%$29K
Sandra Van Scotter (D)2.0%$21K

Questions about this race

Who is favored to win the 2026 CA-20 House race?

As of Oct 3, 2026, prediction markets give Republican Vince Fong a 98% chance of winning the 2026 race for CA-20 over Democrat Sandra Van Scotter (Kalshi 98%, Polymarket 98%).

What do Kalshi and Polymarket say?

Kalshi: Democrats 2%, Republicans 98%. Polymarket: Democrats 2%, Republicans 98%. The two exchanges differ by 0.4 points.

How have the odds moved this week?

Democratic odds have fallen 0.7 points since Sep 26, 2026.

When is the 2026 election?

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

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Data

Cite as: Parlay the People, “2026 CA-20 House race,” https://parlaythepeople.com/2026/house/ca-20/, accessed Oct 3, 2026. Prediction-market prices are crowd forecasts, not certainties, and nothing here is betting or investment advice.