Birmingham: Coleman Wong vs Filippo Romano

Platform comparison

Active sub-markets

Market context

Coleman Wong and Filippo Romano are scheduled to compete in a grass-court match at Birmingham in early June 2026, with the contest originally set for 5:30 AM ET on 4 June. The 0% implied probability displayed across major platforms suggests either minimal trading volume or a technical listing issue, as both players maintain active professional rankings and neither carries injury reports that would justify complete dismissal. The settlement window extends to 11 June at 09:30 UTC, allowing a seven-day buffer for rescheduling before the market defaults to 50-50 resolution.

Historical precedent from ATP grass-court fixtures shows that early-round matches at Birmingham frequently experience weather delays or schedule compression, particularly when tournaments run concurrent qualifying rounds. Wong, a Hong Kong-based player, has competed sporadically on the ATP circuit, whilst Romano, an Italian prospect, has built modest ranking points through Challenger-level competition. The 0% reading across Polymarket, Kalshi, and Betfair suggests either a data synchronisation lag or that neither book has attracted sufficient liquidity to establish meaningful odds; Smarkets' decimal format would express this as 1.01 or lower, indicating near-certain settlement against Wong.

Traders should monitor Birmingham tournament draw announcements and any official postponements issued by the ATP or tournament organisers. Grass-court conditions in June frequently shift match schedules, and the settlement clause's seven-day grace period creates arbitrage opportunities if either player withdraws before the match commences. Fee structures vary materially—Polymarket charges 2% on settlement, whilst Kalshi's flat-fee model may favour smaller positions on low-probability outcomes.

Methodology

This page compares Birmingham: Coleman Wong vs Filippo Romano specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to Polymarket Alternative, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). Polymarket Alternative routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Is this market available outside the US?

Polymarket Alternative is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Alternative 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.