Wimbledon ATP: Vit Kopriva vs Jan Choinski

Platform comparison

Market context

Vit Kopriva and Jan Choinski are set to face each other in the first round of the 2026 Wimbledon Men’s Singles on Court 16, originally scheduled for 29 June but now live as of 30 June at 10:00 UTC[1][2]. The prediction market in question assigns a 0% implied probability to Kopriva advancing, a stark divergence from sportsbook moneylines that favour him at -160 and model-based win probabilities of 60.5%[3]. This 0% figure contradicts both the betting consensus and the head-to-head record, where Choinski holds a 2–1 edge, yet Kopriva has won four of his last five grass-court matches[5][9].

Historically, such extreme underpricing in prediction markets—especially when opposed by clear sportsbook support and positive recent form—has preceded sharp corrections once live data confirms the mismatch. Comparable cases from prior Wimbledon rounds show that markets assigning near-zero probability to a player with winning odds and superior grass performance often resolve against the initial odds once the match begins, particularly when no injury or withdrawal is confirmed[3][6]. Traders should monitor official ATP updates for any late cancellations, weather delays, or player withdrawals, as these are the only catalysts that could shift the 50–50 default clause into play[7]. Dimers’ model, which simulates 10,000 outcomes, still projects Kopriva as the more likely winner, reinforcing the anomaly in the current market pricing[3].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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

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 Kalshi vs Polymarket trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.