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 |
|---|---|
| Completed Match | 100% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Set 2 O/U 8.5 | 100% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Total Sets: O/U 2.5 | 100% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Match O/U 21.5 | 100% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Set 1 Winner | 100% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Set 1 O/U 8.5 | 100% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Match O/U 22.5 | 100% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Match O/U 23.5 | 100% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier | 0% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Set 2 Winner | 0% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Set 2 O/U 9.5 | 0% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Set 1 O/U 9.5 | 0% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Set 2 O/U 10.5 | 0% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Set 1 O/U 10.5 | 0% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Set Handicap +/-1.5 | 0% |
| Cincinnati Open: Coleman Wong vs Daniel Altmaier Set Handicap +/-1.5 | 0% |
Market context
Coleman Wong and Daniel Altmaier are scheduled to meet in the Cincinnati Open first round on 14 August 2026. The market currently prices Wong's advancement at 48%, reflecting near-parity between the two competitors. No material developments have shifted positioning in the past 48 hours; the match setup remains as initially drawn.
Wong, ranked around 140th on the ATP tour, has shown inconsistent results at Masters 1000 events, with a career win rate below 30% at this level. Altmaier, similarly positioned in the rankings but with a more established baseline performance at Cincinnati (having competed there previously), presents a marginal favourite's profile based on historical head-to-head patterns and surface comfort. The 48–52 split reflects genuine uncertainty rather than a clear technical edge; both players have demonstrated capability to win on hard courts, though neither commands a dominant record at this tier.
Traders should monitor the official ATP draw confirmation and any late withdrawals through to the settlement window close on 21 August. Weather disruptions at Cincinnati in mid-August occasionally compress schedules, though the seven-day delay buffer in the resolution criteria provides substantial protection against fixture postponement affecting the outcome. Injury reports or practice-session observations in the 72 hours before play may shift the probability, but absent such developments, the current pricing reflects the genuine competitive balance between two mid-ranking professionals with limited historical data points against each other.
Methodology
This page reviews Cincinnati Open: Coleman Wong vs Daniel Altmaier 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
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 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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