Roehampton: Michael Geerts vs Billy Blaydes

Platform comparison

Market context

Michael Geerts faces Billy Blaydes in a Roehampton tennis match originally scheduled for 18 August 2026 at 7:30 AM ET. The 100% crowd-implied probability reflects either exceptionally high confidence in match completion or minimal trading volume, as prediction markets on lower-tier tennis fixtures typically show wider probability spreads when liquidity is thin. Settlement occurs by 25 August 2026, allowing a seven-day window for rescheduling before the market defaults to 50-50 if no winner emerges.

Roehampton tournaments historically feature players ranked outside the ATP top 100, where fixture cancellations occur at roughly 8–12% annually due to injury withdrawals or scheduling conflicts. Matches at this level rarely produce walkovers; when they do, the advancing player typically receives a default resolution within 48 hours. The settlement terms here favour completion: only outright cancellation, ties, or delays beyond seven days trigger the split outcome, meaning even a late reschedule resolves to one player's advance.

Traders should monitor official tournament draws and player injury reports through the ATP website and Roehampton's official schedule through mid-August. Geerts and Blaydes' recent match records, surface preferences, and any late withdrawals from the draw would shift the underlying probability meaningfully. The current 100% reading suggests either the market has priced in near-certain match completion based on confirmed entries, or trading interest remains dormant until closer to the event date.

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

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%.