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 |
|---|---|
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino | 100% |
| Completed Match | 100% |
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino Set 2 Winner | 100% |
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino Set 1 Winner | 100% |
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino Set 2 O/U 8.5 | 100% |
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino Set Handicap +/-1.5 | 100% |
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino Set 2 O/U 9.5 | 100% |
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino Total Sets: O/U 2.5 | 0% |
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino Set 1 O/U 8.5 | 0% |
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino Match O/U 21.5 | 0% |
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino Set 1 O/U 9.5 | 0% |
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino Match O/U 22.5 | 0% |
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino Set 2 O/U 10.5 | 0% |
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino Match O/U 23.5 | 0% |
| Cincinnati Open: Denis Shapovalov vs Adrian Mannarino Set 1 O/U 10.5 | 0% |
Market context
The Cincinnati Open men's draw is set for mid-August 2026, with Shapovalov facing Mannarino in an early-round matchup. The 100% implied probability reflects confidence the match will occur as scheduled on 13 August. Over the past 48 hours, no injury reports or withdrawal announcements have altered the fixture status; both players remain active on the ATP circuit with no documented fitness concerns flagged by their camps or tournament officials.
Shapovalov holds a 2–1 head-to-head record against Mannarino across their career meetings, with their most recent encounter in 2023 ending in a straight-sets victory for the Canadian. On hard courts specifically—Cincinnati's playing surface—Shapovalov's aggressive baseline game and serve velocity typically favour his profile, though Mannarino's defensive consistency and slice backhand have troubled higher-ranked opponents in the past. The current probability assigns negligible risk to cancellation, withdrawal, or scheduling delays beyond the 7-day window, which is standard for ATP 1000 events where player commitments are contractually binding.
Traders should monitor the ATP injury report and official Cincinnati Open communications through the settlement window closing 20 August. Extreme weather could theoretically delay proceedings, though Cincinnati's indoor backup facilities mitigate this risk substantially. Any late withdrawal by either player—rare at this tournament tier—would trigger the 50-50 resolution clause. The fixture's position in the early rounds means both players have strong incentive to compete, with no scheduling conflicts typical of later-round matches where fatigue or overlapping commitments occasionally force retirements.
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 Today, 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.
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.
- 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.
- 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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