Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
81% | 19% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
81% | 19% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
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
Jaime Faria and Adam Walton are scheduled to contest a first-round match at the Cincinnati Open on 18 August 2026. The prediction market currently implies a 57% probability that Faria advances, suggesting a modest favourite status. The settlement window closes on 25 August at 14:00 UTC, allowing a seven-day buffer beyond the original fixture date to accommodate delays or rescheduling without triggering a 50-50 resolution.
Faria's recent form and ranking trajectory relative to Walton's current standing will anchor the sportsbook consensus. Both players' performance at preceding summer hard-court events—particularly results from ATP 500 or Masters 1000 tournaments in the weeks prior—typically correlate with Cincinnati Open first-round outcomes. Historical data from similar matchups shows that unseeded or lower-ranked players entering the Cincinnati draw rarely command more than 40-45% implied probability unless they have secured a recent title or upset victory. The 57% figure suggests market participants view Faria as holding a meaningful edge, though not overwhelming.
Traders should monitor official ATP communications regarding player withdrawals or injury declarations, which frequently occur in the week before Cincinnati. Weather disruptions at the Lindner Family Tennis Center can compress the schedule, potentially forcing matches into later rounds without completion. Any announcement regarding Walton's fitness status or Faria's participation in preceding tournaments will shift the probability meaningfully. Sportsbook lines from major operators should be cross-referenced against this market's current level to identify any meaningful divergence in how the matchup is priced across platforms.
Methodology
We track Cincinnati Open: Jaime Faria vs Adam Walton 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
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
- 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 Best Prediction Markets UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- What are the best prediction markets for UK traders in 2026?
- For UKGC-regulated markets: Betfair Exchange (sports, politics) and Smarkets (sports, politics, lower commission than Betfair). For broader global event prediction: Polymarket (deepest liquidity, 0% fee, USDC settlement). For US-regulated option: Kalshi (USD, limited UK payment options). Most serious UK traders use a combination of Betfair for regulated sports and Polymarket for broader markets.
Trade Cincinnati Open: Jaime Faria vs Adam Walton on Best Prediction Markets UK
Live order book, 0% fees, USDC settlement in seconds.
Open live market →