Birmingham: Coleman Wong vs Filippo Romano

Platform comparison

Active sub-markets

Market context

Coleman Wong and Filippo Romano are scheduled to compete in a professional tennis match at Birmingham on 4 June 2026, with the contest originally set for 5:30 AM ET. A prediction market on this fixture allows traders to buy YES or NO shares: a YES share pays out if Wong advances, whilst a NO share pays out if Romano progresses. The current crowd-implied probability sits at 0% for YES, meaning the market is pricing Wong's chances as negligible. Settlement occurs by 11 June 2026 at 09:30 UTC, allowing a seven-day window for the match to conclude. Should the fixture be cancelled outright, end in a tie, or remain incomplete beyond that deadline without a decisive result, the market resolves to 50-50, splitting payouts equally.

Predicting outcomes in lower-ranked professional tennis matches requires attention to recent form, head-to-head records, and surface suitability. Wong, a Canadian player, and Romano, an Italian competitor, occupy different tiers of the ATP rankings, which directly influences bookmaker odds and market sentiment. The 0% probability assigned to Wong reflects either a substantial ranking or recent-form gap, or possibly limited liquidity in the market itself. Traders should monitor official ATP tour announcements, injury reports, and any weather alerts affecting the Birmingham schedule in early June, as grass-court conditions can shift match dynamics significantly.

Methodology

We track Birmingham: Coleman Wong vs Filippo Romano on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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.

FAQ

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.

What does it cost to trade on Prediction Market UK?

Zero. Prediction Market UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Prediction Market UK triggers a quick verification flow that finishes in minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.