Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
79% | 21% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
79% | 21% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Eric Barlow | 79% |
| Megan Degenfelder | 22% |
| Brent Bien | 1% |
| Joseph Kibler | 0% |
| Reid Rasner | 0% |
| Bo Biteman | 0% |
| Chuck Gray | 0% |
| Chip Neiman | 0% |
| Ogen Driskill | 0% |
| Mark Gordon | 0% |
| Harriet Hageman | 0% |
| Curt Meier | 0% |
| Tara Nethercott | 0% |
| Cheri Steinmetz | 0% |
| Paul Ulrich | 0% |
| Candidate A | 0% |
| Candidate B | 0% |
| Candidate C | 0% |
| Candidate D | 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
Wyoming's Republican primary for governor will be held on 18 August 2026, with the winner determined by either a single ballot or a run-off if required under state rules. The 79% implied probability of a YES resolution reflects confidence that a Republican nominee will emerge from the primary process rather than the primary being cancelled or failing to produce a result. Current Governor Mark Gordon is term-limited and cannot seek re-election, creating an open-seat race that typically generates multiple candidates within the dominant party.
Wyoming has a history of competitive Republican gubernatorial primaries when seats open, though the state's overwhelming Republican lean means the primary winner is virtually assured of general election victory. In 2018, Gordon won the primary with roughly 40% of the vote in a multi-candidate field before winning the general election with 67%. The state's primary electorate tends to favour candidates with executive experience or strong ties to resource industries and rural constituencies. Recent Wyoming Republican primary contests have produced clear winners without requiring run-offs, though the 2026 field size and candidate positioning remain uncertain.
Key developments to monitor include candidate announcements through late 2025 and early 2026, shifts in endorsements from the state party establishment, and any changes to Wyoming's primary rules. The Wyoming Republican Party's official results announcement will be the binding resolution source. Traders should track whether a crowded field emerges or if frontrunners consolidate support early, as field fragmentation could affect margin sizes but is unlikely to prevent a primary winner from being declared by the August deadline.
Methodology
Sports-specific comparison page for Wyoming Governor 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.
UK Frequently Asked Questions
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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