National Bank Open: Jiri Lehecka vs Vit Kopriva

Platform comparison

Market context

Polymarket is pricing Jiri Lehecka at **100% YES**, which on the contract means the market is effectively treating his advance over Vit Kopriva as a foregone conclusion. The event is a National Bank Open men’s singles match in Montreal, settled on whether Lehecka advances, with the usual Polymarket mechanics applying through USDC on Polygon and conditional tokens rather than a straight sports bet.

That reading is consistent with the tennis context: Lehecka is the higher-ranked player, listed around ATP No. 12 against Kopriva at roughly No. 71, and pre-match previews widely framed him as the clear favourite on hard courts.[2][7][18] The only head-to-head meeting available in the results was a 2022 clay-court match in Liberec, which Lehecka won 6-4, 6-1, so there is at least one prior result supporting the current market direction, even if surface and event level differ materially.[4][16]

For a Polymarket trader, the main catalyst is not the abstract ranking gap but whether the match is actually completed cleanly before the settlement window closes. Live score pages show the contest had started and Lehecka was ahead in sets, which lowers the relevance of pre-match uncertainty, but the contract still has a 50-50 fallback if play is cancelled, tied, or delayed beyond seven days, and it resolves to the advancing player if the match begins but is unfinished because the opponent withdraws.[1][2] Schedule integrity, official ATP updates, and any weather or court-delays in Montreal therefore matter more here than normal market drift.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track National Bank Open: Jiri Lehecka vs Vit Kopriva 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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.