Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
91% | 9% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
91% | 9% | 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 |
|---|---|
| Francesca Hong | 91% |
| David Crowley | 9% |
| Mandela Barnes | 0% |
| Missy Hughes | 0% |
| Brett Hulsey | 0% |
| Sara Rodriguez | 0% |
| Zachary Roper | 0% |
| Kelda Roys | 0% |
| Tim Jacobson | 0% |
| Joel Brennan | 0% |
| Melissa Agard | 0% |
| Chris Larson | 0% |
| Tom Nelson | 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
Wisconsin’s Democratic contest for governor is in the final stretch, with four active names still shaping the race after a series of withdrawals and re-entries. Recent reporting has Francesca Hong as the front-runner, while Joel Brennan, David Crowley and Kelda Roys remain in the field and the ballot still includes candidates who have suspended or left the race, which can complicate final vote shares and media calls.[1][9][13]
The current **0%** implied probability looks more like a market waiting for a credible lead to crystallise than a settled outcome. This is a crowded, open primary in which the better-known figures have shifted repeatedly: Crowley dropped out and then returned, Sara Rodriguez and Missy Hughes suspended their campaigns but stayed on the ballot, and Mandela Barnes exited altogether, leaving the race structurally more fragmented than a standard two-candidate contest.[2][8][9] Comparable Wisconsin primaries have often rewarded the candidate who can consolidate Milwaukee, Madison and organisational support late, rather than the earliest favourite.[6][11]
What matters now is whether the Wisconsin Democratic Party publishes an official schedule for results night and whether any late endorsements, campaign suspensions or ballot-related clarifications move the reporting consensus before 11 August. Polling and endorsement tallies have been close enough that a final-day surge or a split field could still matter, and credible local coverage is already treating the race as volatile in the closing days.[4][5][7] A trader should watch for the party’s first official returns, any concession or suspension statements, and whether absentee and in-person vote patterns confirm the front-runner narrative that has emerged in recent coverage.[1][5]
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
UK Frequently Asked Questions
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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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