Livesport Prague Open, Qualification: Sofia Costoulas vs Ayla Aksu

Platform comparison

Market context

Sofia Costoulas has already defeated Ayla Aksu 2–0 in their WTA encounter at the Livesport Prague Open, confirming the match outcome before the settlement window closes [1]. The 100% YES crowd-implied probability reflects this completed result, where Costoulas advanced cleanly without the match being cancelled, tied, or delayed beyond the seven-day threshold.

Historical qualification matches in Prague often resolve decisively when one player dominates early sets, as seen in previous WTA qualifiers where 2–0 victories eliminated the need for tie-break contingencies or 50–50 resolutions. In such cases, prediction markets settle immediately upon the official result announcement, bypassing the delayed settlement rules that apply only to unfinished or postponed fixtures.

Traders should monitor the official WTA match report for the final confirmation timestamp and any post-match disciplinary notes that might affect player eligibility for subsequent rounds. While no recent news source reports cancellations or delays for this fixture, the primary catalyst remains the official result publication on the WTA website, which triggers automatic market resolution. Programmatic approaches would query the WTA API for the match status field, executing conditional orders only once the "completed" flag is set, ensuring alignment with the settlement logic.

Sources: 1

Methodology

We track Livesport Prague Open, Qualification: Sofia Costoulas vs Ayla Aksu across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Bot UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Bot UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.