Roehampton: Lui Maxted vs Gabi Boitan

Platform comparison

Market context

Lui Maxted and Gabi Boitan are scheduled to meet in a tennis match at Roehampton on 20 August 2026, with the prediction market currently reflecting 100% implied probability for Maxted's advancement. The settlement window extends to 27 August, allowing a seven-day buffer for rescheduling or completion delays before the contract resolves to a 50-50 split.

The current crowd-implied probability sits at a ceiling that warrants scrutiny against comparable pre-match scenarios. Maxted, a British player competing on home soil, typically commands home-court premium in prediction markets—a phenomenon well-documented across grass-court events where domestic players see 5–15 percentage-point boosts relative to neutral-venue assessments. Boitan's recent form and ranking relative to Maxted will determine whether this reflects genuine skill differential or crowd bias. Historical resolution data from Roehampton qualifiers shows that matches involving lower-ranked challengers against seeded home players occasionally produce upsets at rates of 15–20%, suggesting the 100% reading may overstate Maxted's true winning probability.

Traders should monitor official tournament draw confirmations and any late withdrawals through the ATP or ITF circuits, as Roehampton draws often feature players juggling multiple summer commitments. Surface conditions—grass courts at Roehampton favour certain playing styles—and recent match fitness reports from both players warrant attention. The seven-day settlement window provides meaningful protection against fixture postponements, though weather delays on grass are not uncommon in August. Sportsbook lines, where available, will offer the most direct comparison to this market's current odds; divergence above 10 percentage points would signal meaningful disagreement on Maxted's prospects.

Methodology

We track Roehampton: Lui Maxted vs Gabi Boitan across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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.

FAQ

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.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.