Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Bot UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| National Bank Open: Alina Korneeva vs Polina Kudermetova | 100% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 1 Winner | 100% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Total Sets: O/U 2.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Match O/U 21.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 2 Winner | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 2 O/U 8.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set Handicap +/-1.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Match O/U 22.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 2 O/U 9.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set Handicap +/-1.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Match O/U 23.5 | 50% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 2 O/U 10.5 | 50% |
| Completed Match | 0% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 1 O/U 8.5 | 0% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 1 O/U 9.5 | 0% |
| National Bank Open: Alina Korneeva vs Polina Kudermetova Set 1 O/U 10.5 | 0% |
Market context
Alina Korneeva and Polina Kudermetova are scheduled to meet at the National Bank Open in Toronto, with the market settling on whoever advances in that match rather than the pre-match favourite. Tennis.com lists Korneeva at 89 in the singles rankings and Kudermetova at 108, which is the kind of gap that can matter in a one-off hard-court fixture, but it is not large enough on its own to override direct matchup history.[12]
The main historical anchor is their only completed meeting, when Kudermetova beat Korneeva 6-2, 6-3 in Canberra on hard courts in January 2026.[14][15] That result aligns with the broader H2H record, which is 1-0 to Kudermetova across available databases.[2][8] In practical terms, a programmatic trader would usually treat that as a small but real prior, then weight it against the current surface and any live draw or fitness signals rather than extrapolating from a single head-to-head sample.[2][14]
For catalysts, watch for official order-of-play updates, court assignment and any rescheduling within the tournament window, because this market only resolves 50-50 if the match is not played, ends level, or is delayed beyond seven days without a winner.[12] Live scoring and match pages on SofaScore, Flashscore and 365Scores show the event is being tracked in real time, so bots or conditional orders should poll those feeds for start status, retirement flags and score completion before locking a position.[1][5][6]
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 Polymarket Bot UK, which mirrors the Polymarket order book directly.
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?
- 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.
- 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.
- 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.
- 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.
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