Hagen: Tom Gentzsch vs Henri Squire

Platform comparison

Market context

Tom Gentzsch and Henri Squire were due to meet in Hagen on 7 August, but the key change over the last 24–48 hours is that the market is now pricing the match as fully live rather than hypothetical, with exchange and book odds still showing Gentzsch as the firmer favourite. Recent prices have clustered around 1.57–1.65 for Gentzsch and 2.10–2.25 for Squire, which implies roughly a 60–65% edge for Gentzsch before margin, while prediction venues have ranged from the mid-50s to low-60s in his favour.[1][4][9][10][12]

That profile fits a fairly standard Challenger-level clay matchup where rankings and surface form matter more than name value. Gentzsch is listed around ATP 185 and Squire around ATP 211, and the available head-to-head data is thin, so traders are largely reading the pricing off relative tour level and recent market action rather than a deep matchup history.[1][7][13][16] In that sense, the current 100% YES crowd view is consistent with a pre-match expectation that one of the players will advance, not with any special settlement edge.

The main catalysts now are simple: whether the match actually starts on schedule, whether there is any late court-time change, and whether a retirement or weather interruption alters the settlement path. Flashscore and Sofascore both show the fixture on 7 August at 15:00 local time, while some listings use earlier converted times, so timing confusion is the first practical thing to watch; if the match is postponed beyond the market’s seven-day window or abandoned without a completed winner, the settlement can fall back to 50-50.[2][3][17]

Sources: 1 · 2 · 3 · 4 · 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

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

UK Frequently Asked Questions

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.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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%.