2028 Senate

Missouri Senate race odds

As of Oct 3, 2026, prediction markets give the Republican a 88% chance of winning the 2028 Missouri Senate race (Kalshi 88%; one exchange lists this race).

Updated · prices refresh every 10 minutes

Democrats12%
Republicans 88%
Market rating
Likely R
Kalshi (D / R)
11.7% / 88.3%
Polymarket (D / R)
Not listed
Gap between exchanges
—
Election Day
Nov 7, 2028 (767 days)

Price history

Democratic odds rose 0.8 points over the past 3 months, from 11% to 12%.

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
Republican candidate88.3%$1K
Democratic candidate11.7%$167

Polymarket

Polymarket doesn't list this race.

Questions about this race

Who is favored to win the 2028 Missouri Senate race?

As of Oct 3, 2026, prediction markets give the Republican a 88% chance of winning the 2028 Missouri Senate race (Kalshi 88%; one exchange lists this race).

What do Kalshi and Polymarket say?

Kalshi: Democrats 12%, Republicans 88%.

How have the odds moved this week?

Democratic odds are essentially unchanged since Sep 26, 2026.

When is the 2028 election?

Election Day is Nov 7, 2028, 767 days from now.

Other Missouri races in 2028

Closest Senate races in 2028

Data

Cite as: Parlay the People, “2028 Missouri Senate race,” https://parlaythepeople.com/2028/senate/missouri/, accessed Oct 3, 2026. Prediction-market prices are crowd forecasts, not certainties, and nothing here is betting or investment advice.