Updated Oct 16, 2026, 1:45 PM ET
House · 3 November 2026

FL-17 House 2026

95.5% RGreg Steube leads TruthIndex™Safe R
Polymarket
95.4%
Kalshi
95.5%
Spread
0.6 pts
24h
–
7 days
+1.0
Updated
Oct 16, 2026, 1:45 PM ET
Latest coverage

Live News

Recent coverage for FL-17 House.

Greg Steube, last 60 days

How to read this chart

The green line is the TruthIndex™, the chance of this outcome. It combines the prices on both venues and gives more weight to the venue with more money in its order book. The two thinner lines are Polymarket's and Kalshi's own prices, and the grey band between them shows how far apart the two venues are.

The pale bands behind the lines are the rating zones (Toss-up, Lean, Likely and Safe), so you can see when the race moved from one rating to another. Move along the chart, or use the arrow keys, to read the values for each day.

More in Methodology
TruthIndex™PolymarketKalshiGap between the venuesRating zones

All outcomes

OutcomeTruthIndex™PolymarketKalshiSpread24h
RGreg Steube 95.5% 95.4% 95.5% 0.1 pts –
DMatthew Montavon 4.5% 4.5% 3.9% 0.6 pts –

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Candidates & Background

Greg Steube

Greg Steube

Republican U.S. Representative for Florida's 17th congressional district (since 2019)

Greg Steube, a Republican who has represented Florida's 17th congressional district in the U.S. House since 2019, seeks re-election in 2026 against Democrat Matthew Montavon, a retired United Nations official.

Born 1978 · Bradenton, Florida

Matthew Montavon

Democratic

Matthew Montavon, a retired United Nations official, is the Democratic nominee for Florida's 17th congressional district in 2026, facing Republican incumbent Greg Steube in the November 3 general election.

Margin of victory

Each venue's margin market, shown on its own: the two venues set their ranges differently.

Kalshi910 contracts

Florida's 17th District margin of victory

Steube, 1+ pts
96.3%
Steube, 4+ pts
94.2%
Steube, 7+ pts
91.1%
Steube, 10+ pts
83.0%
Steube, 13+ pts
56.0%
Steube, 16+ pts
52.0%
Steube, 19+ pts
40.0%
Steube, 22+ pts
26.5%
Steube, 25+ pts
15.5%
Steube, 28+ pts
7.8%
Steube, 31+ pts
4.0%
Source: Kalshi market

Polymarket$16.9K traded

FL-17 House Election Margin of Victory

Democrat Wins
2.7%
Republican 0-5%
3.6%
Republican 5-10%
7.1%
Republican 10-15%
44.5%
Republican 15-20%
30.5%
Republican 20-25%
13.0%
Republican 25-30%
5.1%
Republican 30%+
3.9%
Source: Polymarket market

Each venue's market

Polymarket$32.6K traded

Prices which party wins.

Greg Steube: Counted · bid 94.8% / ask 96.0% · $894 within 5 pts

This market will resolve according to the party of the candidate who wins the FL-17 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. ​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources. This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).

Full rules on Polymarket

Kalshi5.6K contracts traded

Prices which party wins.

Greg Steube: Counted · bid 93.5% / ask 97.5% · $1.1K within 5 pts

Contract shown: Greg Steube

If the House member sworn in for FL-17 for the term beginning in 2027 is a member of the Republican Party, then the market resolves to Yes.

This market is eligible for accelerated determination after a consensus of media organizations project the winner. See full rules for details.

Full rules on Kalshi