Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
78% | 22% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
78% | 22% | 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 |
|---|---|
| National Bank Open: Brandon Nakashima vs Titouan Droguet | 78% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Set 1 O/U 8.5 | 78% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Set 1 Winner | 71% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Set 2 Winner | 68% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Set Handicap +/-1.5 | 55% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Set 1 O/U 9.5 | 55% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Match O/U 21.5 | 53% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Set 2 O/U 8.5 | 51% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Set 2 O/U 9.5 | 51% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Set 2 O/U 10.5 | 51% |
| Completed Match | 50% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Match O/U 22.5 | 46% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Match O/U 23.5 | 44% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Total Sets: O/U 2.5 | 35% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Set 1 O/U 10.5 | 30% |
| National Bank Open: Brandon Nakashima vs Titouan Droguet Set Handicap +/-1.5 | 12% |
Market context
Brandon Nakashima is due to play Titouan Droguet in the National Bank Open third round in Montreal, with the tournament’s own match listing showing the fixture as upcoming on 6 August and other live schedules placing it just after midnight UTC on 7 August. In practical market terms, that means the contract is mainly a straight read on whether Nakashima advances from this one match, rather than on any broader tournament pathway.[1][2][4]
A 78% crowd-implied probability is broadly consistent with the pre-match framing in the tennis market: Nakashima is the higher-ranked player, while Droguet is the lower-ranked qualifier, and several preview and rating-based listings have Nakashima as a clear favourite, though not overwhelming. The pair have no ATP-level head-to-head history, which reduces the value of prior matchup data and leaves price discovery more dependent on current surface form, serve quality and in-match momentum on outdoor hard courts.[2][5][11][12][13]
For traders, the key catalysts are simple: whether the match starts on time, whether it is completed, and whether any schedule change pushes it beyond the market’s settlement window. The official event pages and live score listings indicate the match was still pending at publication, so a late postponement, suspension or abandonment would matter more here than in a normal settled tennis result, because the contract terms fall back to 50-50 if play does not produce a winner within the specified delay period. In practice, if the market remains open through the evening, the on-chain side is just a USDC binary with resolution tied to the official outcome, while broader BTC or ETH moves are only relevant if they affect risk appetite or wallet funding rather than the match itself.[1][4][17][18]
Methodology
This page reads National Bank Open: Brandon Nakashima vs Titouan Droguet 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
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- 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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