Roehampton: Iliyan Radulov vs Johannus Monday

Platform comparison

Market context

Iliyan Radulov and Johannus Monday are scheduled to meet in a tennis match at Roehampton on 17 August 2026 at 5:00 AM ET. The market currently reflects 100% implied probability for Radulov's advancement, suggesting either strong consensus on his form or minimal liquidity depth at the time of observation. Settlement occurs by 24 August 2026, allowing a seven-day window for rescheduling before resolution defaults to 50-50 split.

Radulov's career trajectory and recent results provide the baseline for interpreting this extreme probability skew. Players with established ATP rankings and consistent tournament appearances typically command higher implied odds against lower-ranked or less frequently competing opponents. Monday's participation history and recent match outcomes would normally calibrate the spread; however, the 100% reading suggests either Radulov holds a significant ranking advantage or Monday's recent form has deteriorated markedly. Historical precedent shows that grass-court specialists often see probability shifts in the week preceding Roehampton fixtures as surface-specific data emerges.

Traders monitoring this market programmatically should track ATP rankings updates and injury announcements through official tennis databases, as these typically trigger repricing. Recent tournament results from both players—particularly performances on grass or hard courts in July 2026—will signal whether the current probability reflects genuine form differential or market inefficiency. Withdrawal announcements, which often surface 48–72 hours before scheduled play, represent the primary catalyst for resolution-path shifts. Automated conditional orders should account for the seven-day rescheduling clause, as weather delays at UK venues frequently trigger postponements that reset the settlement window.

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 Polymarket Review UK, 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%.