Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) 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 |
|---|---|
| Completed Match | 100% |
| Hagen: Lorenzo Giustino vs Jerome Kym Match O/U 21.5 | 100% |
| Hagen: Lorenzo Giustino vs Jerome Kym Set 1 O/U 8.5 | 100% |
| Hagen: Lorenzo Giustino vs Jerome Kym Set 2 O/U 8.5 | 100% |
| Hagen: Lorenzo Giustino vs Jerome Kym Set 2 O/U 9.5 | 100% |
| Hagen: Lorenzo Giustino vs Jerome Kym Set Handicap +/-1.5 | 100% |
| Hagen: Lorenzo Giustino vs Jerome Kym Set 2 O/U 10.5 | 100% |
| Hagen: Lorenzo Giustino vs Jerome Kym | 0% |
| Hagen: Lorenzo Giustino vs Jerome Kym Total Sets: O/U 2.5 | 0% |
| Hagen: Lorenzo Giustino vs Jerome Kym Set 1 Winner | 0% |
| Hagen: Lorenzo Giustino vs Jerome Kym Set 2 Winner | 0% |
| Hagen: Lorenzo Giustino vs Jerome Kym Set Handicap +/-1.5 | 0% |
| Hagen: Lorenzo Giustino vs Jerome Kym Match O/U 22.5 | 0% |
| Hagen: Lorenzo Giustino vs Jerome Kym Set 1 O/U 9.5 | 0% |
| Hagen: Lorenzo Giustino vs Jerome Kym Match O/U 23.5 | 0% |
| Hagen: Lorenzo Giustino vs Jerome Kym Set 1 O/U 10.5 | 0% |
Market context
Lorenzo Giustino and Jérôme Kym are set to meet in Hagen, with the market’s **0% YES** price implying the crowd sees the listed side as effectively unavailable or extremely unlikely to advance. On the tennis data feeds, Kym is generally the stronger-rated player: Flashscore lists him around ATP No. 198, while Giustino is shown around ATP No. 205 on the live match pages, and one pre-match model prices Kym as a **70% favourite** against Giustino’s 30%.[2][5][9] That makes the consensus read straightforward: Kym is the favourite, Giustino the underdog, and a zero-price market is more a signal of uncertainty around settlement than a normal win-probability view.[9]
For comparable cases, the main handicapper’s read is that Challenger-level matches often move sharply on late information, but the pre-match edge usually follows ranking, recent form, and whether a player has already logged matches in the same event. TennisTemple’s live estimate is narrower, at roughly **53.3% for Giustino and 46.7% for Kym**, which shows there is at least one model treating the match as close to even rather than a one-sided spot.[5] In market terms, that leaves the value question split between backing the clearer paper favourite if you trust the ATP/ranking gap, or taking a contrarian view that the contest is much tighter than the 0% YES crowd price suggests.[2][5][9]
The key catalysts are simple: whether the match actually starts on schedule, whether either player is pulled out late, and whether the event timetable shifts enough to push settlement into the market’s fallback rules. Live listings place the fixture on **7 August 2026**, with different pages showing midday to early afternoon start times, so traders should watch for organiser updates and live scoreboards rather than relying on a single listed start time.[3][16] If there is a delay, cancellation, or an unfinished match without a winner inside the settlement window, the market can still resolve to **50-50** under the stated rules, which means the main risk is procedural rather than purely on-court.[3][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 Who Will Win, 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
- 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 Who Will Win. 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%.
Trade Hagen: Lorenzo Giustino vs Jerome Kym on Who Will Win
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