Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Cincinnati Open: Mariano Navone vs Raphael Collignon | 100% |
| Completed Match | 100% |
| Cincinnati Open: Mariano Navone vs Raphael Collignon Set 1 O/U 8.5 | 100% |
| Cincinnati Open: Mariano Navone vs Raphael Collignon Set 2 O/U 8.5 | 100% |
| Cincinnati Open: Mariano Navone vs Raphael Collignon Match O/U 21.5 | 100% |
| Cincinnati Open: Mariano Navone vs Raphael Collignon Set 2 Winner | 100% |
| Cincinnati Open: Mariano Navone vs Raphael Collignon Set 1 Winner | 100% |
| Cincinnati Open: Mariano Navone vs Raphael Collignon Set 2 O/U 9.5 | 100% |
| Cincinnati Open: Mariano Navone vs Raphael Collignon Set 2 O/U 10.5 | 100% |
| Cincinnati Open: Mariano Navone vs Raphael Collignon Total Sets: O/U 2.5 | 0% |
| Cincinnati Open: Mariano Navone vs Raphael Collignon Set Handicap +/-1.5 | 0% |
| Cincinnati Open: Mariano Navone vs Raphael Collignon Set 1 O/U 9.5 | 0% |
| Cincinnati Open: Mariano Navone vs Raphael Collignon Match O/U 22.5 | 0% |
| Cincinnati Open: Mariano Navone vs Raphael Collignon Match O/U 23.5 | 0% |
| Cincinnati Open: Mariano Navone vs Raphael Collignon Set 1 O/U 10.5 | 0% |
Market context
Mariano Navone meets Raphael Collignon in a Cincinnati Open men’s singles match originally listed for 13 August, and the market’s 100% **YES** pricing implies traders are treating a Collignon advance as the base case. That sits close to the wider pre-match view: multiple tennis models and bookmakers had Collignon favoured in the mid-to-high 50s, with prices around -146 to -161 on the moneyline, while some feeds still showed Navone attracting support at shorter prices than the crowd-implied extreme suggests.[1][2][8][13]
For prediction-market readers, the key reference point is that tennis match markets can move sharply on late draw updates, retirements, and scheduling changes, especially when a first-round fixture is slotted on a busy Masters 1000 card. Comparable pre-match markets on Polymarket and Kalshi around this event were still only pricing Collignon around the high-50s, which makes a 100% YES crowd signal look more like an outlier than a consensus estimate; in on-chain terms, that kind of concentration can leave little room for price discovery if the match is simply played as scheduled.[7][11]
The main catalysts are straightforward: whether the match is actually completed, whether there is a late withdrawal or walkover, and whether any delay pushes the settlement beyond the seven-day window that would force a 50-50 outcome under the contract rules. The relevant operational detail is that the market settles on the player who advances, so an in-match retirement still matters differently from a cancellation before play begins; live feeds had the fixture pencilled in for Court 10 with start times varying by source, which is exactly the sort of scheduling uncertainty traders watch closely.[10][15][17]
Methodology
This page reads Cincinnati Open: Mariano Navone vs Raphael Collignon on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
UK Frequently Asked Questions
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- 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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