Wimbledon WTA: Barbora Krejcikova vs Mirra Andreeva

Platform comparison

Market context

The underlying event is the second-round WTA match at Wimbledon between Barbora Krejcikova and Mirra Andreeva, scheduled for 6:00 AM ET on 1 July 2026. Andreeva, the French Open champion, is favoured to advance, with bookmakers pricing her as a -237 favourite in a tight contest[1]. The market currently implies a 100% probability that Krejcikova will win, a stark contradiction to the odds favouring Andreeva to progress[1].

Historically, such 100% implied probabilities in early-round tennis markets often signal a data error or a misaligned settlement condition rather than a genuine consensus on the outcome. Comparable cases show that when odds favour one player heavily (as Andreeva’s -237 price does) but the market resolves to the other, the discrepancy usually stems from a conditional order failure or a bot misreading the settlement rule[2]. Programmatic traders would flag this as a high-risk conditional order, requiring immediate verification of the resolution logic before executing copy-trading strategies[2].

Key catalysts include the official match result, any delay beyond seven days, and announcements regarding player availability or court conditions. Andreeva’s recent dominant first-round performance at Wimbledon suggests she is well-prepared, while Krejcikova’s opening match also looked strong[5]. Traders should monitor live score feeds for set progression, as a match beginning but not completing could trigger the 50-50 resolution clause[6]. Recent coverage confirms Andreeva faces a tough unseeded opponent in Krejcikova, reinforcing the likelihood of a competitive match[5].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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 Review UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.