Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Dan Green | 100% |
| Marcus Carter | 0% |
| Thomas Chalifoux | 0% |
| Jorge Malavet | 0% |
| Howard Steven Rance | 0% |
| Justin Story | 0% |
| Ben Butler | 0% |
| Jorge Martinez | 0% |
| Steve Rance | 0% |
| Candidate E | 0% |
| Candidate F | 0% |
| Candidate G | 0% |
| Candidate H | 0% |
| Candidate I | 0% |
| Candidate J | 0% |
| Candidate K | 0% |
| Candidate L | 0% |
| Candidate M | 0% |
| Candidate N | 0% |
| Candidate O | 0% |
| Other | 0% |
Market context
Florida's 9th congressional district will hold a Republican primary on 18 August 2026 to select the party's nominee for the U.S. House seat in that year's midterm elections. The district, which encompasses parts of Orange and Osceola counties in the Orlando metropolitan area, has shifted demographically over the past decade, becoming increasingly Hispanic and diverse. The current 0% implied probability suggests the market has yet to see substantive candidate declarations or polling data that would anchor trader expectations around specific contenders.
Primary races in Florida's central districts have historically been decided by margins of 5–15 percentage points when multiple candidates compete, with name recognition and local organisational strength proving decisive factors. The 2022 cycle saw several Republican primaries in similar districts turn on late-breaking endorsements from sitting members and county party structures. Comparable open-seat races in the region have drawn between three and six serious candidates, with winner-take-all dynamics favouring those with early fundraising advantages and established voter contact operations.
Traders should monitor candidate filing deadlines, which typically occur in late spring 2026, and watch for early endorsements from the Florida Republican Party leadership or sitting congressional members. Local news coverage from outlets such as the Orlando Sentinel will provide crucial signals about candidate viability and spending levels as the primary approaches. Any significant demographic shifts in voter registration data or changes to district boundaries through redistricting could alter the competitive landscape materially before the August primary date.
Methodology
Sports-specific comparison page for FL-09 Republican Primary Winner. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
FAQ
- Can I bet on individual matches?
- Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
- Which sports markets are available?
- Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.
- How fast do sports winnings settle?
- Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.
- What's the difference between match odds and outright odds?
- Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.
- Can I import form data and lineups?
- This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.
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