Cash
Portfolio
TrendingMidtermsElectionsPoliticsSportsCultureCryptoCommoditiesClimateEconomicsMentionsFinanceTech & Science
PredictLive174AccountSocial
MARKETSPERPSLIVE174
Product
Kalshi ProPerpetual FuturesMarketsIncentive programInstitutionsAPI & developers
Company
AboutKalshi ResearchBlogCareersPolicy CenterBrand Kit
Help
Help CenterFAQFee scheduleTrading hoursRegulatoryTrust Center
© 2026 Kalshi Inc. · All rights reserved
PrivacyData Terms of ServiceTrading ProhibitionsFAQ for Finance Professionals
Trading on Kalshi involves risk and may not be appropriate for all. Members risk losing their cost to enter any transaction, including fees. You should carefully consider whether trading on Kalshi is appropriate for you in light of your investment experience and financial resources. Any trading decisions you make are solely your responsibility and at your own risk. Information is provided for convenience only on an "AS IS" basis. Past performance is not necessarily indicative of future results. Kalshi is subject to U.S. regulatory oversight by the CFTC.
Series Image
  1. House

FL-21 House winner?

Resolves by winning party
100
Chance
Brian Mast
Republican party
84%
▼ 6.7

Brian Mast

Republican party
84%
▼ 6.7
James Martin
Democratic party
16%
▲ 6.7

James Martin

Democratic party
16%
▲ 6.7
People are also trading
Series Image
Florida's 21st District margin of victory
Series Image
Florida 21 House General Election: voter turnout
Series Image
FL-21 House election: Brian Mast vote percent
Series Image
FL-21 House election: James Martin vote percent
Series Image
Which party will win the U.S. House?
Series Image
California Governor winner? (Person)
Series Image
Texas Senate winner?
Series Image
Ohio Governor winner?
Series Image
Ohio Senate winner?
Series Image
Which party will win the U.S. Senate?

More Florida and 2026 Midterm Races

More Florida races

Florida Governor race: Donalds vs. JollyFlorida Senate race: Moody vs. NixonFL-25 House raceFL-14 House raceFL-22 House raceFL-27 House raceFL-09 House race

Control of Congress

Which party will win the Senate?Which party will win the House?Congress balance of power

Top races

Texas Senate race: Talarico vs. PaxtonMaine Senate race: Jackson vs. CollinsMichigan Senate race: El-Sayed vs. RogersOhio Senate race: Brown vs. HustedIowa Senate race: Hinson vs. TurekNew York Governor race: Hochul vs. BlakemanKansas Senate race: Marshall vs. HamiltonSouth Carolina Senate race: Graham vs. AndrewsNorth Carolina Senate race: Cooper vs. WhatleyOhio Governor race: Acton vs. Ramaswamy

More races

Maryland Governor race: Moore vs. CoxNebraska Governor race: Pillen vs. WalzConnecticut Governor race: Lamont vs. FazioOklahoma Senate race: Hern vs. ThomasSouth Carolina Governor race: Wilson vs. JohnsonRhode Island Senate race: Reed vs. McKayColorado Senate race: Hickenlooper vs. BaisleyVirginia Senate race: Warner vs. MizusawaWest Virginia Senate race: Capito vs. AndersonDelaware Senate race: Coons vs. Katz
FL-21 House winner?

Brian Mast

Odds
86% chance
Max payout
Nov 3, 2027
$0
Martin
Nov 3 ·R +10.8margin forecast
Mast
$25,433 vol
Race Intel

FL-21 House Race 2026

ElectionNov 3, 2026General election
IncumbentBrian Mast (R)Running for re-election

FL-21 House Candidates and Fundraising

CandidateRaisedSmall Donors
  • Brian MastR
    $4.9M
    28%
    $4.9M raised·28% small donors
  • James MartinD
    $772.6K
    15%
    $772.6K raised·15% small donors

Mast vs. Martin Polls vs. Kalshi Odds

Polling averageNo public polling average for this race yet
Kalshi oddsMast 84%Martin 16% · $18.9K traded
Fundraising: FEC filings · Small-donor ≤ $200. This does not include third party expenditures.

Past FL-21 Election Results

Past presidential elections

2024R +16.2%2020R +8.8%