Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Market UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Athens Open: Alina Korneeva vs Ann Li | 100% |
| Completed Match | 100% |
| Athens Open: Alina Korneeva vs Ann Li Set 1 Winner | 100% |
| Athens Open: Alina Korneeva vs Ann Li Set 2 Winner | 100% |
| Athens Open: Alina Korneeva vs Ann Li Set Handicap +/-1.5 | 100% |
| Athens Open: Alina Korneeva vs Ann Li Set 1 O/U 8.5 | 0% |
| Athens Open: Alina Korneeva vs Ann Li Match O/U 21.5 | 0% |
| Athens Open: Alina Korneeva vs Ann Li Total Sets: O/U 2.5 | 0% |
| Athens Open: Alina Korneeva vs Ann Li Set 2 O/U 8.5 | 0% |
| Athens Open: Alina Korneeva vs Ann Li Set 1 O/U 9.5 | 0% |
| Athens Open: Alina Korneeva vs Ann Li Match O/U 22.5 | 0% |
| Athens Open: Alina Korneeva vs Ann Li Set 2 O/U 9.5 | 0% |
| Athens Open: Alina Korneeva vs Ann Li Set Handicap +/-1.5 | 0% |
| Athens Open: Alina Korneeva vs Ann Li Set 1 O/U 10.5 | 0% |
| Athens Open: Alina Korneeva vs Ann Li Match O/U 23.5 | 0% |
| Athens Open: Alina Korneeva vs Ann Li Set 2 O/U 10.5 | 0% |
Market context
Alina Korneeva and Ann Li are set to face off in the second round of the Athens Open, a WTA tournament where the match was originally scheduled for 5:00 AM ET on 16 July 2026. In prediction markets, a YES share pays out if the market’s chosen outcome occurs, while a NO share pays out if it does not. Here, the market asks whether Korneeva will advance past Li; a YES position wins if Korneeva advances, and a NO position wins if Li advances.
Despite the crowd-implied probability sitting at 100% YES, external data suggests a more contested contest. Tennis.com projects Ann Li as the likely winner with a 54% chance, compared to Korneeva’s 46% [1]. Similarly, The Stats Zone explicitly tips Ann Li to win this Round of 16 encounter [2]. This divergence between the market’s certainty and statistical projections mirrors historical cases where early liquidity or limited trading depth creates pricing inefficiencies before broader data corrects the odds.
Traders should monitor official WTA updates for any schedule changes, player withdrawals, or retirement clauses that could trigger the market’s 50-50 settlement rule. Ann Li holds a positive 4-3 head-to-head record against plausible opponents in this draw, adding weight to her projected advantage [3]. With the settlement window closing on 23 July 2026, any delay beyond seven days without a winner will also force a 50-50 resolution, making real-time match status critical for position management.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Market UK, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- 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.
- 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 Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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.
Trade Athens Open: Alina Korneeva vs Ann Li on Prediction Market UK
Live order book, 0% fees, USDC settlement in seconds.
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