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: Iva Jovic vs Alina Korneeva Set 1 O/U 8.5 | 100% |
| National Bank Open: Iva Jovic vs Alina Korneeva Total Sets: O/U 2.5 | 72% |
| National Bank Open: Iva Jovic vs Alina Korneeva Set 2 Winner | 71% |
| National Bank Open: Iva Jovic vs Alina Korneeva Match O/U 23.5 | 65% |
| Completed Match | 50% |
| National Bank Open: Iva Jovic vs Alina Korneeva Set 2 O/U 8.5 | 50% |
| National Bank Open: Iva Jovic vs Alina Korneeva Set 2 O/U 9.5 | 50% |
| National Bank Open: Iva Jovic vs Alina Korneeva Set 2 O/U 10.5 | 50% |
| National Bank Open: Iva Jovic vs Alina Korneeva Match O/U 22.5 | 47% |
| National Bank Open: Iva Jovic vs Alina Korneeva | 46% |
| National Bank Open: Iva Jovic vs Alina Korneeva Match O/U 21.5 | 41% |
| National Bank Open: Iva Jovic vs Alina Korneeva Set Handicap +/-1.5 | 6% |
| National Bank Open: Iva Jovic vs Alina Korneeva Set 1 Winner | 0% |
| National Bank Open: Iva Jovic vs Alina Korneeva Set 1 O/U 9.5 | 0% |
| National Bank Open: Iva Jovic vs Alina Korneeva Set 1 O/U 10.5 | 0% |
Market context
Iva Jovic meets Alina Korneeva in Toronto with the price still close to a coin flip, and the latest market level of 46% for Jovic leaves only a slim edge either way. The match was listed for 8 August, and the key change in the last day is simply that it is now imminent, with both players already on the draw and no head-to-head history to anchor expectations.[2][7][9][11]
The cleanest framing is that Jovic has the stronger ranking and the more established tour profile, sitting at No. 16 against Korneeva’s No. 89, but the market is not treating that gap as decisive.[2][9] Comparable stat pages also show no previous meeting between them, while season-to-date numbers point to both arriving with broadly positive hard-court records rather than one player in obvious collapse.[3][7][8] That combination is typical of a match where the favourite’s name value is moderated by opponent form and the uncertainty of a first meeting.[3][7]
For traders, the immediate catalysts are the official order of play, any late withdrawal or injury note, and whether the match actually starts on schedule, because this market falls back to 50-50 if it is not played or is pushed beyond the seven-day settlement window.[2][9] If the match is delayed within the event, the live probability will likely track any change in court assignment and surrounding draw dependencies rather than the headline ranking gap alone.[2][8]
Methodology
We track National Bank Open: Iva Jovic vs Alina Korneeva 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.
UK Frequently Asked Questions
- 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.
- 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%.
Trade National Bank Open: Iva Jovic vs Alina Korneeva on Prediction Today
Live order book, 0% fees, USDC settlement in seconds.
Open live market →