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: Coco Gauff vs Liudmila Samsonova | 100% |
| Completed Match | 100% |
| Cincinnati Open: Coco Gauff vs Liudmila Samsonova Total Sets: O/U 2.5 | 100% |
| Cincinnati Open: Coco Gauff vs Liudmila Samsonova Set 2 Winner | 100% |
| Cincinnati Open: Coco Gauff vs Liudmila Samsonova Set 2 O/U 8.5 | 100% |
| Cincinnati Open: Coco Gauff vs Liudmila Samsonova Match O/U 21.5 | 100% |
| Cincinnati Open: Coco Gauff vs Liudmila Samsonova Match O/U 22.5 | 100% |
| Cincinnati Open: Coco Gauff vs Liudmila Samsonova Set 2 O/U 9.5 | 100% |
| Cincinnati Open: Coco Gauff vs Liudmila Samsonova Match O/U 23.5 | 100% |
| Cincinnati Open: Coco Gauff vs Liudmila Samsonova Set 1 O/U 8.5 | 0% |
| Cincinnati Open: Coco Gauff vs Liudmila Samsonova Set 1 Winner | 0% |
| Cincinnati Open: Coco Gauff vs Liudmila Samsonova Set Handicap +/-1.5 | 0% |
| Cincinnati Open: Coco Gauff vs Liudmila Samsonova Set 1 O/U 9.5 | 0% |
| Cincinnati Open: Coco Gauff vs Liudmila Samsonova Set 1 O/U 10.5 | 0% |
| Cincinnati Open: Coco Gauff vs Liudmila Samsonova Set 2 O/U 10.5 | 0% |
Market context
The Cincinnati Open men's and women's draws are set for mid-August 2026, with Coco Gauff positioned in the upper half of the women's bracket. The 97% crowd probability reflects Gauff's ranking advantage and recent form relative to Samsonova, though the market's confidence sits notably high given the inherent volatility of single-match outcomes on hard courts. No material changes to either player's status have emerged in the past 48 hours; the probability has stabilised around the seeding differential.
Gauff has won three of her last four encounters against Samsonova across all surfaces, with their most recent meeting in 2024 favouring Gauff in straight sets. Samsonova's record against top-10 opponents in Cincinnati conditions remains mixed—she has reached the quarter-finals once in the past three years but struggles with consistency on hard courts when facing aggressive baseline players. Historical Cincinnati data shows that seeded players in the 1–4 range advance roughly 78% of the time, which aligns with the current probability band.
Traders should monitor the official Cincinnati draw confirmation and any late withdrawals through the WTA's injury reports, typically released 48 hours before play. Weather forecasts for mid-August in Ohio may affect court conditions and scheduling; extended heat or rain delays beyond the seven-day window would trigger the 50-50 resolution clause. Gauff's participation in warm-up events immediately preceding Cincinnati will signal her physical readiness; any signs of injury or form dip in those matches could shift the probability downward.
Methodology
This page reviews Cincinnati Open: Coco Gauff vs Liudmila Samsonova 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 Today, which mirrors the Polymarket order book at 0% fees.
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
- 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 Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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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