Pronóstico: National Bank Open: Renata Zarazua vs Tamara Korpatsch

Platform comparison

Market context

Polymarket is pricing this contract at **100% Yes**, even though the listed match page still shows Renata Zarazua and Tamara Korpatsch as an upcoming first-round meeting in Toronto. On Polymarket, the outcome is settled in USDC on Polygon through conditional tokens, so if the match is actually played to a winner, the token resolves to the advancing player; if it is not completed under the market rules, it can fall back to the designated 50-50 outcome rather than a straight winner settlement.

The current price is notably higher than the pre-match read from tennis markets and listings, which still point to a live contest with Zarazua generally treated as the stronger side. Tennis.com had Zarazua projected at 60% and Korpatsch at 40%, while other match listings showed the pair scheduled for 3 August in the National Bank Open first round. Head-to-head data is also thin, with no prior meetings recorded in the available tournament data, so the market is not leaning on any established rivalry pattern.

For traders, the key catalysts are administrative rather than tactical: whether the match is moved, delayed, or completed on court. The National Bank Open schedule, court assignments, and any injury or withdrawal notices matter more than form once a contract is already trading near certainty. The Athletic’s recent preview listed the match among Toronto’s round-of-128 fixtures, which underlines that the main risk is still whether the event timetable holds and whether a result is officially recorded before the settlement window closes.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Qué Es, which mirrors the Polymarket order book directly.

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 Qué Es. 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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Qué Es 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.