Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
77% | 23% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
77% | 23% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Eric Barlow | 77% |
| 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 take place on 18 August 2026, with the winner determined by the state party's official announcement. The 77% implied probability reflects confidence in a single-round outcome, though the market's settlement terms explicitly accommodate a second round or run-off if required by Wyoming statute. USDC settlement occurs upon first official Wyoming Republican Party results confirmation, with credible reporting consensus serving as fallback verification.
Wyoming has held competitive gubernatorial primaries in recent cycles. In 2022, Mark Gordon won the Republican primary with approximately 40% of the vote in a crowded field, demonstrating that plurality outcomes are plausible even with multiple candidates. The current 77% probability suggests traders expect either a dominant frontrunner or a field consolidation before August 2026. Historical turnout in Wyoming Republican primaries ranges between 60,000 and 90,000 voters; candidate announcements and endorsement patterns typically crystallise 6–12 months before the election date.
Key catalysts include formal candidate declarations (expected late 2025 through early 2026), endorsements from incumbent Governor Gordon or national Republican figures, and any shifts in Wyoming's political alignment. Traders should monitor Wyoming Republican Party communications regarding ballot access deadlines and primary rules, typically published in early 2026. Funding rate movements on crypto markets have shown modest correlation with political uncertainty in states with significant mining operations, though Wyoming's primary outcome carries limited direct macro implications for BTC or ETH spot prices.
Methodology
This page reads Wyoming Governor Republican Primary Winner on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
UK Frequently Asked Questions
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- 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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