Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk

Platform comparison

Market context

Ashlyn Krueger faces Marta Kostyuk in the Wimbledon WTA Round of 16, a match originally slated for 6:00 AM ET on 5 July 2026 but now live on 6 July. The prediction market currently implies a 31% chance that Krueger advances, while major sportsbooks and analyst consensus favour Kostyuk, who enters as the 12th-seeded Ukrainian with red-hot form, winning 19 of her last 20 matches[4][5]. This divergence mirrors historical cases where grass specialists with momentum are undervalued by bookmakers despite strong surface records; Krueger, for instance, has won six matches at Wimbledon this year and carries an 11-match winning streak on grass[3].

Traders should monitor live updates on player fitness and any weather-related delays, as the match window closes at 10:00 AM ET on 12 July 2026, with a 50-50 settlement if the contest is not completed within seven days[1]. Kostyuk’s 3-0 grass record in 2026 and solid 64% win rate over the past decade suggest resilience, yet Krueger’s grass momentum remains a critical catalyst that could shift odds rapidly[8]. Recent form analysis from TennisTonic confirms Kostyuk’s dominance, but Krueger’s streak on grass warrants close attention as a potential market-moving factor[8].

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 Best Prediction Markets, 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 Best Prediction Markets. 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.

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 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.