Nottingham Open: Ann Li vs Kimberly Birrell

Platform comparison

Active sub-markets

Market context

The Nottingham Open, held annually on grass courts in the English Midlands, will feature a first-round match between American Ann Li and Australian Kimberly Birrell scheduled for 16 June 2026. Li, ranked in the mid-80s on the WTA tour, has shown inconsistent form on grass surfaces historically, whilst Birrell, a former top-100 player, has struggled with injuries and ranking volatility in recent seasons. The 0% implied probability suggests the market has either failed to populate with liquidity or reflects extreme confidence in one outcome based on recent player performance data not yet reflected in public rankings.

Grass-court tournaments present particular volatility for prediction markets given the surface's sensitivity to player preparation, recent match fitness, and weather conditions. Li's record at Nottingham and comparable grass events shows marginal success rates, whilst Birrell's recent tournament appearances have been sporadic. The settlement window extends to 23 June, allowing seven days beyond the scheduled date for completion; matches at smaller WTA events occasionally shift by one or two days due to weather or scheduling adjustments, though outright cancellations remain rare absent player withdrawals or injury.

Traders should monitor both players' entry confirmations and any injury reports in the fortnight before the event. Birrell's participation history at grass tournaments and Li's recent warm-up match results will provide clearer form indicators. The current 0% probability likely reflects insufficient market depth rather than genuine certainty; early movement typically follows official draw confirmation and pre-tournament practice reports from Nottingham.

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 Nottingham Open: Ann Li vs Kimberly Birrell 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

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 Trump Prediction?

Zero. Trump Prediction 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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Trump Prediction triggers a quick verification flow that finishes in minutes.