Pronóstico: National Bank Open: Nikola Bartunkova vs Bianca Andreescu

Platform comparison

Market context

Polymarket is pricing this match at **100% YES**, so the contract is effectively at the top of the book on the view that Bianca Andreescu will advance over Nikola Bartunkova. On Polygon, traders are buying and selling conditional tokens settled in USDC, so the market reflects a clean event outcome rather than a moneyline-style scoreline: if Andreescu advances, YES pays out; if the match is not completed under the market rules, the resolution can fall back to 50-50.

That extreme price is easier to read in context of the player profiles than as a forecast of certainty. The pair have no prior head-to-head at tour level, and the available previews point to Bartunkova as the younger, lower-profile challenger and Andreescu as the more established name on home soil. Recent listings show Bartunkova around WTA 41 and Andreescu around WTA 174, while Andreescu’s past run in Toronto gives her a familiar venue edge; at the same time, Bartunkova has been compiling wins on tour and has already shown she can compete at WTA 1000 level.

For traders, the key catalysts are straightforward: official start times, any schedule reshuffle at the National Bank Open, and whether the match is actually completed before the market’s settlement rules bite. The tournament’s own results page currently carries the fixture but the statistical record remains at zeroes, which is consistent with a match that has not yet produced an on-court outcome. If weather, court backlog, or withdrawal pushes the contest beyond seven days from the scheduled date without a winner, Polymarket’s 50-50 fallback becomes relevant rather than either side cashing at 100%.

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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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.