Ilkley: Mary Stoiana vs Celine Naef

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Active sub-markets

Market context

Mary Stoiana and Celine Naef are scheduled to compete in a first-round match at the Ilkley tennis tournament on 13 June 2026. The market currently reflects zero confidence in a Stoiana victory, suggesting either substantial uncertainty about match completion or a strong consensus favouring Naef's advancement.

Historical precedent from WTA lower-tier events shows that withdrawal and cancellation rates at grass-court tournaments in June typically range between 8–12%, with weather disruption and player injury being primary factors. The Ilkley event, held annually in Yorkshire, has experienced fixture delays in prior years due to rain. Given the settlement window extends to 20 June—a seven-day buffer—the market's extreme probability skew likely reflects either Naef's superior ranking or recent form data rather than scheduling risk alone. Comparable first-round matches at equivalent tour stops have rarely settled at 0% for either competitor unless one player withdrew before market opening.

Traders should monitor official WTA communications regarding player withdrawals or injury updates in the week preceding 13 June. Recent tournament schedules and draw confirmations typically release 48–72 hours before competition begins. Weather forecasts for Yorkshire in mid-June will influence match completion likelihood, particularly given grass courts' sensitivity to precipitation. Any announcement of Stoiana's withdrawal or fitness concerns would validate the current pricing; conversely, confirmation of both players' participation without injury reports would suggest the market has undervalued Stoiana's chances materially.

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 Ilkley: Mary Stoiana vs Celine Naef 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

Where can I trade this market with the lowest fees?

On Election Predictions 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.

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.

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, Election Predictions UK triggers a quick verification flow that finishes in 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.