National Bank Open: Jiri Lehecka vs Vit Kopriva

Platform comparison

Market context

Polymarket is pricing this contract at **100% YES** on the on-chain side, which implies near-certainty that Jiří Lehečka advances over Vít Kopřiva and that the USDC-settled conditional token resolves in Lehečka’s favour. The match was originally scheduled for 4 August 2026 at the National Bank Open in Montreal, and official tournament results now show it as **completed**, with Lehečka winning 6-4, 6-2 on Court 5.[1][2]

That full price fits the basic framing of the matchup: Lehečka entered as the stronger ATP player and pre-match previews expected his heavier pace to be decisive on hard court.[6][19] The head-to-head was also one-sided in Lehečka’s favour, with only one prior meeting recorded and that ending in a straight-sets win for him at Liberec in 2022.[7][17] On prediction markets, a 100% quote usually reflects either a confirmed result already visible in official feeds or a market that is effectively too small to trade away from the obvious outcome.

For traders watching the last mile, the main catalysts are no longer sporting form but *administrative finality*: tournament score confirmation, any match-status updates, and whether the result has been captured cleanly by Polymarket’s oracle workflow before settlement. Because the contract is tied to advancement rather than margin, the key binary is simply whether the ATP match is officially recorded as a completed win for Lehečka, and the National Bank Open’s result page already indicates that it is.[1] Under the market rules, only an abandoned, cancelled, tied, or excessively delayed match would have pushed this to a 50-50 outcome, which does not appear consistent with the current official result.[1]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews National Bank Open: Jiri Lehecka vs Vit Kopriva across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Alternative UK, which mirrors the Polymarket order book at 0% fees.

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

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 Polymarket Alternative UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.