Ilkley: Mary Stoiana vs Celine Naef

Platform comparison

Active sub-markets

Market context

The Ilkley tournament will host a women's singles match between Mary Stoiana and Celine Naef on 13 June 2026, with the contest originally scheduled for 9:00 AM ET. The market settles on whether Stoiana advances past Naef; if the match does not occur, ends in a tie, or remains unresolved beyond seven days from the scheduled date, the market resolves 50–50. Should the match begin but not conclude, with one player retiring, the advancing player is declared the winner for settlement purposes.

The 0% implied probability reflects the market's current state rather than any fundamental assessment of Stoiana's likelihood. Comparable WTA qualifying and main-draw matches at grass-court events show typical liquidity clustering around established seeding positions and recent ranking movements. Stoiana and Naef's recent form, head-to-head records, and grass-court experience will shape how traders reassess this probability once the draw is published and closer to the event date. Historical patterns suggest markets on lower-profile matches often remain thin until 48–72 hours before play.

Traders should monitor the official Ilkley tournament draw announcement, scheduled injury updates from both players' social media and WTA channels, and any weather alerts affecting the grass courts in Yorkshire. The settlement window closes 13 June 2026 at 13:00 UTC, allowing approximately four hours after the scheduled start time for match completion. Under German GlüStV regulations, this market remains accessible to EU residents; US CFTC reach does not restrict binary sports outcomes on established platforms. The no-KYC threshold up to $1,500 applies to this market, permitting traders in certain jurisdictions to participate without full identity verification below that stake level, though platform-specific terms govern actual access.

Methodology

We track Ilkley: Mary Stoiana vs Celine Naef on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket KYC 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.

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 KYC UK?

Zero. Polymarket KYC 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.