Lexus Eastbourne Open: Tatjana Maria vs Tereza Valentova

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Active sub-markets

Market context

The underlying real-world event is the women’s singles tennis match between Tatjana Maria and Tereza Valentova at the 2026 Lexus Eastbourne Open, scheduled for 10:00 AM ET on 25 June 2026 at Devonshire Park. This is a WTA 250 grass-court tournament running from 20 to 27 June, with matches typically starting at 11:00 AM local time[1][4]. The market resolves to Tatjana Maria if she advances, to Tereza Valentova if she wins, and to 50–50 if the match is cancelled, tied, or delayed beyond seven days without a winner.

Historically, crowd-implied probabilities of 0% in pre-match tennis markets usually signal either a player withdrawal, a severe injury, or a confirmed non-participation before the draw is finalised. Comparable cases from recent WTA events show that such extreme odds often resolve to 50–50 when administrative errors or weather delays prevent play, rather than confirming a definitive loss[3][7]. Programmatically, a bot would flag this as a high-risk conditional order, requiring real-time verification of player status via the official WTA draw feed before executing any trade.

Traders should monitor the official Lexus Eastbourne Open daily schedule and player lineup updates, which are published on the LTA and WTA websites[3][4]. Key catalysts include any late injury announcements, weather-related postponements, or changes to the match timetable, all of which could shift the probability from 0% to a live trading range. A recent update from the WTA confirms that all scheduled matches for 25 June remain active, but fans are advised to check for real-time draw adjustments before the tournament begins[4]. Conditional orders should be set to cancel if the match status changes to “not played” or “delayed”.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Bot UK, which mirrors the Polymarket order book directly.

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?

On Polymarket Bot UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket Bot 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 Polymarket Bot UK?

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