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: Peyton Stearns vs Clara Tauson Set 2 Winner | 100% |
| Cincinnati Open: Peyton Stearns vs Clara Tauson Set 1 O/U 8.5 | 100% |
| Cincinnati Open: Peyton Stearns vs Clara Tauson Set 1 O/U 9.5 | 100% |
| Cincinnati Open: Peyton Stearns vs Clara Tauson Set 1 O/U 10.5 | 100% |
| Cincinnati Open: Peyton Stearns vs Clara Tauson | 66% |
| Completed Match | 50% |
| Cincinnati Open: Peyton Stearns vs Clara Tauson Total Sets: O/U 2.5 | 50% |
| Cincinnati Open: Peyton Stearns vs Clara Tauson Match O/U 21.5 | 50% |
| Cincinnati Open: Peyton Stearns vs Clara Tauson Set Handicap +/-1.5 | 50% |
| Cincinnati Open: Peyton Stearns vs Clara Tauson Match O/U 22.5 | 50% |
| Cincinnati Open: Peyton Stearns vs Clara Tauson Match O/U 23.5 | 50% |
| Cincinnati Open: Peyton Stearns vs Clara Tauson Set 1 Winner | 0% |
| Cincinnati Open: Peyton Stearns vs Clara Tauson Set 2 O/U 8.5 | 0% |
| Cincinnati Open: Peyton Stearns vs Clara Tauson Set 2 O/U 9.5 | 0% |
| Cincinnati Open: Peyton Stearns vs Clara Tauson Set 2 O/U 10.5 | 0% |
Market context
Peyton Stearns faces Clara Tauson in the Cincinnati Open's second round on 15 August 2026, with the American currently favoured at 66% implied probability. The match represents a significant test for Stearns, who has steadily climbed the rankings over the past two seasons whilst Tauson, the Danish player, has shown inconsistent form on hard courts despite her technical ability. Recent tournament results suggest Stearns has gained confidence in back-to-back matches, whereas Tauson's preparation heading into Cincinnati remains uncertain given her mixed results on the North American hard-court swing.
Historically, matchups between rising American players and established European competitors at Cincinnati have favoured the player with superior recent momentum rather than ranking alone. Stearns' trajectory mirrors several players who broke through in their mid-twenties by combining improved serve consistency with court positioning; Tauson's career pattern shows she performs best when leading matches rather than fighting back. The 66% probability reflects reasonable confidence in Stearns but acknowledges Tauson's capacity to execute on given opportunities.
Traders should monitor official Cincinnati draw confirmations and any late injury reports through 14 August. Stearns' performance in qualifying or warm-up matches immediately before the tournament will signal her physical readiness, whilst Tauson's practice sessions and any coaching adjustments could shift the technical dynamics. Weather conditions on match day—particularly humidity and court speed—historically favour different playing styles, making real-time conditions a material factor closer to the scheduled start time.
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
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 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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