Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Market UK) Pick polygram.ink (preferred broker) |
81% | 19% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
81% | 19% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Cincinnati Open: Jaime Faria vs Adam Walton Set 1 O/U 8.5 | 81% |
| Completed Match | 69% |
| Cincinnati Open: Jaime Faria vs Adam Walton Match O/U 21.5 | 64% |
| Cincinnati Open: Jaime Faria vs Adam Walton | 59% |
| Cincinnati Open: Jaime Faria vs Adam Walton Set 1 O/U 9.5 | 59% |
| Cincinnati Open: Jaime Faria vs Adam Walton Set 1 Winner | 56% |
| Cincinnati Open: Jaime Faria vs Adam Walton Set 2 Winner | 55% |
| Cincinnati Open: Jaime Faria vs Adam Walton Match O/U 22.5 | 55% |
| Cincinnati Open: Jaime Faria vs Adam Walton Set 2 O/U 8.5 | 50% |
| Cincinnati Open: Jaime Faria vs Adam Walton Set 2 O/U 9.5 | 50% |
| Cincinnati Open: Jaime Faria vs Adam Walton Set 2 O/U 10.5 | 50% |
| Cincinnati Open: Jaime Faria vs Adam Walton Match O/U 23.5 | 49% |
| Cincinnati Open: Jaime Faria vs Adam Walton Total Sets: O/U 2.5 | 44% |
| Cincinnati Open: Jaime Faria vs Adam Walton Set Handicap +/-1.5 | 35% |
| Cincinnati Open: Jaime Faria vs Adam Walton Set 1 O/U 10.5 | 33% |
Market context
The Cincinnati Open, held annually at the Western & Southern Open in Ohio, is a prestigious ATP Masters 1000 event that draws elite players in late summer. Jaime Faria and Adam Walton are scheduled to meet in the early rounds on 18 August 2026. A YES share represents a bet that Faria advances; a NO share bets on Walton's progression. The current crowd-implied probability of 57% for Faria reflects a modest favouring, suggesting the market views this as a competitive matchup rather than a heavily one-sided encounter.
Comparable first-round Masters fixtures between players of similar ranking typically settle within a 45–60% range for the higher-ranked competitor, depending on surface affinity and recent form. Hard courts—Cincinnati's playing surface—favour aggressive baseline players and serve-dominant competitors. Historical data from ATP Masters 1000 events shows that seeding, recent match wins, and head-to-head records shape early-round outcomes significantly. If either player has a prior meeting record or a notable recent tournament run, that context would narrow the probability band considerably.
Traders should monitor the official ATP draw release, scheduled injury announcements, and any weather delays that might affect match scheduling. The Cincinnati Open typically runs on a tight schedule; matches delayed beyond seven days without completion trigger the 50–50 resolution clause. Recent form updates—particularly ATP ranking movements and qualifying-round results in the week before the tournament—will provide concrete signals. Any withdrawal or late substitution would void the match entirely, also resolving at 50–50.
Methodology
This page reviews Cincinnati Open: Jaime Faria vs Adam Walton across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Prediction Market UK, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
UK Frequently Asked Questions
- 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 Prediction Market 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.
- 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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