Roehampton: Filip Peliwo vs Nicolas Tepmahc

Platform comparison

Market context

The qualifying match between Filip Peliwo and Nicolas Tepmahc at Roehampton is scheduled for 18 August 2026, with the settlement window closing a week later on 25 August. The 100% implied probability suggests either exceptionally strong conviction about Peliwo's advancement or minimal market liquidity at present. Given this is a qualifying-round fixture at a relatively modest grass-court event, trading activity typically remains light until closer to the tournament date, which may explain the extreme probability reading rather than genuine certainty about the outcome.

Qualifying matches at Roehampton historically feature significant variance in player form and preparation. Both players' recent results, injury status, and grass-court experience in the fortnight before 18 August will be material factors. Peliwo, a Canadian player, has competed sporadically on the professional circuit; Tepmahc's recent activity and ranking trajectory should be cross-referenced against ATP or ITF databases to assess relative competitive standing. The grass-court surface itself introduces volatility—players with limited recent grass exposure often underperform expectations.

Traders should monitor official tournament draws and any withdrawal announcements from either player in early August, as qualifying fields frequently experience late changes. Weather conditions at Roehampton in mid-August could affect match scheduling, particularly given the seven-day delay threshold in the resolution criteria. Any injury updates or ranking fluctuations for either player in the weeks preceding the event would justify reassessing the current probability, which currently reflects minimal genuine market information.

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

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.

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%.