Pronóstico: National Bank Open: Jiri Lehecka vs Vit Kopriva

Platform comparison

Market context

Polymarket is pricing this contract at **100% YES**, so on-chain the market is treating Jiri Lehecka as the near-certain winner of this USDC-settled, Polygon-based conditional token event. That is a live price on the contract itself, not a pure abstract view of the tennis matchup, and it implies almost no perceived probability of Vit Kopriva advancing.

The historical frame is straightforward: Lehecka has the stronger ranking profile, sitting at ATP No. 12 against Kopriva’s No. 71, and he also won their only previous meeting, a 6-4, 6-1 result at the 2022 Liberec Challenger on clay.[2][4][6] Lehecka has also handled Masters-level opposition more convincingly this season, while Kopriva’s record against top-20 hard-court players remains poor, which helps explain why the market has collapsed to a one-sided price rather than a modest favourite edge.[6][19] On Polymarket, though, the contract only resolves to Lehecka if he advances; if the match is abandoned, ends level, or drifts beyond the seven-day delay window without a winner, it settles 50-50 instead of paying out the favourite.[Market description]

The key trader catalysts are the official match status, any court or scheduling changes from Montreal, and whether play completes normally rather than being stopped mid-match. The available live listings show the contest as scheduled for Court 5 in Montreal on 4 August, with the event already in progress on some scoreboards, so the main risk is no longer pre-match uncertainty but settlement mechanics if weather, darkness, or interruption prevents a clean finish.[1][2][11][13] A recent news-style preview also still frames Lehecka as the stronger hard-court player and a likely straight-sets winner, which supports the current on-chain pricing, but any official retirement, walkover, or restart scenario would matter more to the market than pre-match opinion.[17][6]

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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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.

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 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.