Lexus Eastbourne Open: Janice Tjen vs Caty McNally

Platform comparison

Active sub-markets

Market context

The underlying event is a WTA 250 grass-court tennis match between Janice Tjen and Caty McNally at the Lexus Eastbourne Open, scheduled for 22 June 2026 at Devonshire Park in Eastbourne, Great Britain. The market currently implies a 100% probability that Janice Tjen will advance, suggesting the outcome is treated as certain by the crowd despite the match having just commenced or been delayed.

Historically, prediction markets on tennis matches with near-100% implied probabilities often reflect either a dominant pre-match ranking gap or a confirmed withdrawal of one player before play begins. Comparable cases from the 2024 and 2025 WTA seasons show that when markets settle at 100% before a match starts, it usually indicates a no-show or administrative cancellation rather than a competitive contest. Traders should therefore scrutinise whether the match was ever played, as a cancellation would trigger a 50-50 resolution per the market rules.

The primary catalyst to watch is the official WTA match result announcement, which will confirm whether Tjen advanced or if the match was voided. Traders must also monitor the WTA’s daily schedule updates for Devonshire Park, as delays beyond seven days without a winner would also force a 50-50 split. According to the WTA Official Tournament Overview, the event runs from 22–27 June 2026, so any resolution must occur within this window to avoid the tie clause [2]. The market is leaning on the assumption that Tjen’s advancement is confirmed, but verification via the official result feed remains essential.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Lexus Eastbourne Open: Janice Tjen vs Caty McNally plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

Is this market available outside the US?

Election Predictions 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.

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 Election Predictions UK?

Zero. Election Predictions 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 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.