National Bank Open: Botic van de Zandschulp vs Jakub Mensik

Platform comparison

Market context

Botic van de Zandschulp’s meeting with Jakub Menšík at the National Bank Open is priced by the crowd at **28%** for van de Zandschulp, implying Menšík is a clear favourite on the contract. That sits close to the broader pre-match market view: Sportskeeda lists Menšík at **-225** and van de Zandschulp at **+175**, which is roughly the same shape as a low-30s win chance for van de Zandschulp rather than a coin flip.[16] Tennis.com also lists Menšík as the higher-ranked player, with Menšík at **No. 17** and van de Zandschulp at **No. 70**.[9]

The historical frame is thin because there is **no prior head-to-head** between them on the main tour, so traders are leaning more on season form and style than on matchup history.[2][11][15] The clearest statistical split is that Menšík has the stronger 2026 record, at **27-13** versus van de Zandschulp’s **18-15** in one head-to-head stat set, alongside a bigger ace output and stronger first-serve points won.[1] Comparable market previews also lean Menšík, with Tennis Tonic and Sportskeeda both calling him the pick before play, while the absence of a prior meeting limits confidence in any exact line.[6][16]

The main catalyst is simply whether the match goes ahead on schedule at all, because this contract resolves to **50-50** if it is not played, ends level, or is delayed beyond seven days without a winner. If the draw or session order changes, the listing on Tennis.com shows the match in the Round of 16/4R slot, so any reshuffle in the tournament order or court allocation can affect timing but not the underlying matchup unless it is removed entirely.[9][17] Flashscore’s live listing and recent preview pages confirm the fixture is active in the draw, but no injury or withdrawal report is apparent in the provided results, so the key trading risk is pre-match availability rather than an obvious form shock.[11][17]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track National Bank Open: Botic van de Zandschulp vs Jakub Mensik 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

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

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.