Wimbledon, Qualification WTA: Aliaksandra Sasnovich vs Bianca Andreescu

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Active sub-markets

Market context

Bianca Andreescu defeated Aliaksandra Sasnovich 6-3, 7-6 (4) in the final qualifying match for Wimbledon, securing her place in the main draw on the grass courts at Roehampton. The Canadian, ranked 180th in the WTA, overcame the 124th-ranked Belarusian in a contest that concluded on Thursday, 25 June 2026. This outcome renders the prediction market for Sasnovich to advance as a 'YES' event impossible, aligning with the current crowd-implied probability of 0%.

Historically, markets where a player has already lost their match before settlement show immediate convergence to zero probability, mirroring cases like the 2024 US Open qualifier where pre-settlement odds collapsed once the result was confirmed. In such instances, sportsbook lines and prediction markets diverge sharply only if the result is disputed; here, the match result is undisputed, meaning analyst consensus and book lines both reflect Andreescu’s victory. The 0% probability is not a speculative estimate but a factual confirmation of the match outcome.

Traders should monitor official WTA announcements confirming Andreescu’s entry into the main draw and any subsequent schedule updates for her first-round match. Recent coverage from Sportsnet confirms the result and Andreescu’s advancement, eliminating ambiguity [1]. No further catalysts exist, as the match is complete and the settlement window now serves only to formalise the resolved outcome. The market will resolve to 'Bianca Andreescu' with certainty.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Wimbledon, Qualification WTA: Aliaksandra Sasnovich vs Bianca Andreescu on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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

Is this market available outside the US?

Best Prediction Markets UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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 it cost to trade on Best Prediction Markets UK?

Zero. Best Prediction Markets UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.