Wimbledon WTA: Marta Kostyuk vs Jasmine Paolini

Platform comparison

Market context

The real-world event at the heart of this market is the Wimbledon Women’s Singles quarterfinal between Marta Kostyuk and Jasmine Paolini, originally set for 6:00 AM ET on 7 July 2026. In prediction markets, a YES share pays out if Kostyuk advances past Paolini, while a NO share pays out if Paolini wins or the match is cancelled, tied, or delayed beyond seven days without a winner. With the crowd-implied probability at 68% YES, the market currently favours Kostyuk, despite Paolini holding a 2–1 advantage in their three prior meetings[1][7].

Historically, players who are underdogs despite a better head-to-head record often reflect current form, ranking, or surface suitability rather than past outcomes. Paolini, ranked 17th, enters as a significant underdog against Kostyuk, ranked 13th, with average odds of –307 favouring Kostyuk[2]. Comparable quarterfinals on grass have shown that rankings and recent win streaks—both players currently have four-match streaks—often outweigh historical head-to-heads[8]. Traders should watch for any pre-match announcements on player fitness, weather delays, or schedule changes that could alter playing conditions[2]. The IBM SlamTracker for this match will provide live stats on serve efficiency and break points, which are critical on grass[6]. No recent news has indicated injury, but monitoring WTA official updates before the match is essential[4].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Wimbledon WTA: Marta Kostyuk vs Jasmine Paolini across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Prediction Market UK, which mirrors the Polymarket order book at 0% fees.

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?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

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.