Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| Hagen: Jerome Kym vs Max Houkes | 100% |
| Completed Match | 100% |
| Hagen: Jerome Kym vs Max Houkes Set 1 Winner | 100% |
| Hagen: Jerome Kym vs Max Houkes Set 2 Winner | 100% |
| Hagen: Jerome Kym vs Max Houkes Set 1 O/U 8.5 | 100% |
| Hagen: Jerome Kym vs Max Houkes Set Handicap +/-1.5 | 100% |
| Hagen: Jerome Kym vs Max Houkes Match O/U 21.5 | 100% |
| Hagen: Jerome Kym vs Max Houkes Set 2 O/U 8.5 | 100% |
| Hagen: Jerome Kym vs Max Houkes Set 2 O/U 9.5 | 100% |
| Hagen: Jerome Kym vs Max Houkes Set 2 O/U 10.5 | 100% |
| Hagen: Jerome Kym vs Max Houkes Total Sets: O/U 2.5 | 0% |
| Hagen: Jerome Kym vs Max Houkes Set 1 O/U 9.5 | 0% |
| Hagen: Jerome Kym vs Max Houkes Set Handicap +/-1.5 | 0% |
| Hagen: Jerome Kym vs Max Houkes Match O/U 22.5 | 0% |
| Hagen: Jerome Kym vs Max Houkes Set 1 O/U 10.5 | 0% |
| Hagen: Jerome Kym vs Max Houkes Match O/U 23.5 | 0% |
Market context
Jerome Kym and Max Houkes were due to meet in Hagen’s round of 16, and the market is effectively pricing a Kym advance as a certainty, with the crowd at 100% YES even though third-party match pages still show the fixture as upcoming. The most recent listings place Kym as the stronger player on ranking and pre-match probability, with projections around 59-63% for Kym in the match itself and outright moneylines favouring him over Houkes.[1][11][17]
That sort of market shape is more consistent with a straightforward favourite-versus-underdog Challenger match than with a genuinely open contest. Kym also held the only recorded head-to-head edge reported in the available listings, having beaten Houkes 1-0 in completed meetings, which is enough to frame the matchup but not enough to justify a 100% certainty on sporting grounds alone.[2][12][15] In lower-tier ATP Challenger draws, prices can harden quickly when one player is already on court form or the opponent is visibly lower ranked, but they rarely imply certainty unless the market is also reacting to a finished result.
The main near-term catalysts are simple: the official match status, any court-time updates, and whether the tie is actually played rather than pushed back within the settlement window. Several live-score and sportsbook pages still list the match as scheduled or in progress on 6 August, while one source had it underway on clay at Platzmann Centre Court, so traders should watch for a completed result, retirement, or any postponement that could affect whether the market settles to a winner or the 50-50 fallback.[3][6][7][16]
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Today, which mirrors the Polymarket order book directly.
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
- 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.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- 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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