Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) 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 |
|---|---|
| Completed Match | 100% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti Set 1 O/U 8.5 | 100% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti Set Handicap +/-1.5 | 100% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti Set 1 O/U 9.5 | 100% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti | 0% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti Set 1 Winner | 0% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti Total Sets: O/U 2.5 | 0% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti Set 2 Winner | 0% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti Match O/U 21.5 | 0% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti Set 2 O/U 8.5 | 0% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti Match O/U 22.5 | 0% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti Set 2 O/U 9.5 | 0% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti Match O/U 23.5 | 0% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti Set 1 O/U 10.5 | 0% |
| Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti Set 2 O/U 10.5 | 0% |
Market context
The Cincinnati Open men's draw in August 2026 will feature a matchup between German qualifier Daniel Altmaier and Italian prospect Lorenzo Musetti. The current 0% implied probability for Altmaier suggests the market has settled decisively on Musetti as the favourite, though the settlement window extends to 23 August, allowing seven days beyond the scheduled 16 August start date for the match to conclude.
Altmaier has historically struggled against top-100 opponents on hard courts, where Cincinnati is played. His career record against players ranked inside the top 50 sits below 20%, with particular vulnerability to aggressive baseline players who can dictate rallies. Musetti, by contrast, has demonstrated consistent improvement on hard courts over recent seasons and holds a winning record against mid-ranked German opponents. The 0% reading reflects consensus confidence rather than genuine uncertainty—Musetti's ranking advantage and surface suitability typically command such pricing in qualifying matchups at Masters 1000 events.
Traders should monitor withdrawal announcements in the week preceding 16 August, as both players occasionally pull from Cincinnati due to scheduling conflicts or injury management. Recent ATP injury reports and practice court activity from Cincinnati's official draws will signal genuine fitness concerns. The match's position in the draw—whether it occurs early or late in the tournament schedule—affects fatigue variables, particularly if either player has already competed multiple rounds. Any delay beyond the scheduled date without completion triggers the 50-50 resolution clause, a tail risk worth tracking given Cincinnati's occasional weather disruptions in mid-August.
Methodology
We track Cincinnati Open: Daniel Altmaier vs Lorenzo Musetti 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
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.
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%.
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