Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) 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 |
|---|---|
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis | 100% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 1 Winner | 100% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 1 O/U 8.5 | 100% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 1 O/U 9.5 | 100% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Total Sets: O/U 2.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Match O/U 21.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 2 O/U 8.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 2 Winner | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set Handicap +/-1.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Match O/U 22.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 2 O/U 9.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set Handicap +/-1.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 2 O/U 10.5 | 50% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Match O/U 23.5 | 50% |
| Completed Match | 0% |
| Canadian Open, Qualification: Alexei Popyrin vs Thanasi Kokkinakis Set 1 O/U 10.5 | 0% |
Market context
Polymarket is pricing the Popyrin side at **100% YES**, which means the contract is effectively treating Alexei Popyrin as a certainty to advance over Thanasi Kokkinakis. In Polymarket’s on-chain set-up, that view is expressed with USDC on Polygon through conditional tokens: if Popyrin advances, YES settles at full value; if Kokkinakis advances, NO does. If the match is not completed within the contract’s dispute window or is washed out by cancellation, it can still resolve 50-50 under the market rules, so the live price is only as strong as the event actually being played to completion.
That crowd signal is notably stronger than the pre-match shape suggested by other tennis markets and live-score listings, which still show both players on the card in Montreal qualifying and, in some venues, a much narrower split than an all-but-certain result. Popyrin has the more obvious recent hard-court pedigree in this event context, having won the Canadian Open in 2024, while Kokkinakis has typically been the more volatile qualifier-style profile in ATP main-tour and qualifying draws. Head-to-head history also matters for reading crowd confidence: the pair have met before, but there is no broad evidence here of a one-sided dominance that would normally justify a 100% contract price.[9][11][17][19]
For traders, the key catalysts are simple: whether the match is officially slotted in Montreal qualifying, whether either player withdraws before first ball, and whether the fixture is moved or abandoned. Current live listings place the match on 1 August in Montréal on outdoor hard courts, and tournament coverage says qualifying began on 1 August with main-draw play following soon after, so any scheduling change would be the main source of settlement risk rather than form noise.[1][2][10] If the scoreboards update to a walkover, retirement before completion, or a delay beyond the market’s seven-day backstop, the contract mechanics become more important than the tennis itself.
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 Kalshi UK, which mirrors the Polymarket order book directly.
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
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi 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.
Trade Canadian Open, Qualification: Alexei Popyrin vs Than… on Kalshi UK
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