Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| National Bank Open: Alina Korneeva vs Emma Navarro | 100% |
| Completed Match | 100% |
| National Bank Open: Alina Korneeva vs Emma Navarro Set 2 Winner | 100% |
| National Bank Open: Alina Korneeva vs Emma Navarro Set 1 Winner | 100% |
| National Bank Open: Alina Korneeva vs Emma Navarro Set Handicap +/-1.5 | 100% |
| National Bank Open: Alina Korneeva vs Emma Navarro Set 1 O/U 8.5 | 0% |
| National Bank Open: Alina Korneeva vs Emma Navarro Set 2 O/U 8.5 | 0% |
| National Bank Open: Alina Korneeva vs Emma Navarro Total Sets: O/U 2.5 | 0% |
| National Bank Open: Alina Korneeva vs Emma Navarro Match O/U 21.5 | 0% |
| National Bank Open: Alina Korneeva vs Emma Navarro Set 1 O/U 9.5 | 0% |
| National Bank Open: Alina Korneeva vs Emma Navarro Set 2 O/U 9.5 | 0% |
| National Bank Open: Alina Korneeva vs Emma Navarro Set Handicap +/-1.5 | 0% |
| National Bank Open: Alina Korneeva vs Emma Navarro Match O/U 22.5 | 0% |
| National Bank Open: Alina Korneeva vs Emma Navarro Set 2 O/U 10.5 | 0% |
| National Bank Open: Alina Korneeva vs Emma Navarro Set 1 O/U 10.5 | 0% |
| National Bank Open: Alina Korneeva vs Emma Navarro Match O/U 23.5 | 0% |
Market context
Emma Navarro’s meeting with Alina Korneeva has yet to produce a completed result, so the market is still being driven by the pre-match gap rather than any on-court upset. Navarro is the higher-ranked player, sitting around No 26-28 in the live listings, while Korneeva is around No 89, which helps explain why the crowd is pricing a Navarro advance at **89% YES**.[1][2][4]
That level is high, but it is not extreme for a WTA hard-court match with a clear ranking favourite. Comparable pre-match projection tools have generally put Navarro ahead by a narrower margin, around the high-50s to low-60s, which suggests the market may be leaning more heavily on her established tour level than on any direct head-to-head edge.[4] There is also no recorded head-to-head between the pair in the available match databases, so traders are relying mostly on ranking, recent form and surface fit rather than a matchup history.[3][6][8]
The key catalyst now is simply whether the match is officially completed or pushed again. Current listings showed the Toronto Round 2 tie on hard court with a scheduled start around 5 August, but multiple live-score pages indicate the match had not yet produced stats or a result, so any late withdrawal, rescheduling or walkover outcome would matter for settlement.[2][9][10] On this market, a straight Navarro advance resolves to her, but if the contest is abandoned without a winner or slips beyond the seven-day window from the scheduled date, it resolves 50-50 under the rules.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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.
UK Frequently Asked Questions
- 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 Prediction Today. 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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