Lexus Eastbourne Open, Qualification: Jan Choinski vs Yibing Wu

Platform comparison

Active sub-markets

Market context

Polymarket is pricing Jan Choinski vs Yibing Wu at **100% YES** on the outcome tied to Choinski advancing, which means the contract is effectively trading as a done deal on Polygon with USDC-backed conditional tokens. In practice, that leaves almost no premium for uncertainty: if you are looking at the market now, traders are saying the likely settlement path is already locked in unless the official tennis result changes or the match is later treated as void under the rules.

That sort of pricing is common once a match has been completed or the result is already reflected across data feeds. Here, comparable cases on prediction venues have shown that prices can snap to near-certain levels when official scoreboards and exchange data converge, then sit there until settlement is finalised. Polymarket’s own ATP markets resolve off the match result, with the share price reflecting the crowd’s implied probability and paying out $1 per winning share if the side is correct.

The main things to watch are the official ATP score state, any walkover, retirement or rescheduling notices, and whether the contract’s settlement window closes with a verified winner. Tennis365 listed the fixture for 20 June at 14:30, while ATP live scoring had both players on court, so the key dependency is whether the official result stays consistent across feeds rather than any fresh pre-match information. Because the market’s fallback is a 50-50 resolution if the match is not played, tied, or delayed beyond seven days without a winner, the practical catalyst is confirmation from the tournament and ATP rather than player news alone.[1][2][4]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Lexus Eastbourne Open, Qualification: Jan Choinski vs Yibing Wu 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.

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 Scam? 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.