National Bank Open: Linda Noskova vs Caty McNally

Platform comparison

Market context

Linda Noskova’s second-round meeting with Caty McNally at the National Bank Open sits in a strange pricing pocket: the market is showing **0% YES**, yet Tennis.com’s pre-match projection had Noskova at **78%** to win, with McNally at 22%[8]. That gap is far larger than the underlying tennis case would justify on form and ranking alone. Noskova is the higher-ranked player by a wide margin, listed at No. 7 against McNally around No. 70, while the pair’s only prior meeting was won by McNally in Trnava in 2022[2][8]. Historical framing therefore points to a favourite-vs-underdog setup in which the exchange price is materially detached from the mainstream tennis view, rather than a genuinely even contest[2][4][8].

For traders, the main watchpoints are whether the match starts as scheduled and whether the result is completed inside the settlement rules. Flashscore and Tennis Temple both had the match listed for 6 August, with live scoring pages active, which suggests the event was expected to go ahead on court rather than be pushed well into the tournament calendar[1][2]. If there is a walkover, retirement, or weather-related delay that leaves no winner within seven days of the scheduled date, the contract resolves 50-50 under the stated terms. The practical market question is therefore less about broad tennis strength and more about execution risk: lineup confirmation, court order, and any last-minute medical or scheduling change before play begins[1][2][15].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track National Bank Open: Linda Noskova vs Caty McNally 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

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

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.

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.