Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
50% | 50% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
50% | 50% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Set 1 Winner | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Set 2 O/U 8.5 | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Set 1 O/U 8.5 | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Match O/U 21.5 | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Set 2 Winner | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Total Sets: O/U 2.5 | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Set Handicap +/-1.5 | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Set 1 O/U 9.5 | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Set 2 O/U 9.5 | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Set Handicap +/-1.5 | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Match O/U 22.5 | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Set 1 O/U 10.5 | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Set 2 O/U 10.5 | 50% |
| National Bank Open: Titouan Droguet vs Felix Auger-Aliassime Match O/U 23.5 | 50% |
| Completed Match | 0% |
Market context
Felix Auger-Aliassime’s second-round meeting with Titouan Droguet at the National Bank Open is priced close to a coin flip in the market, with the crowd-implied probability at 50% for Droguet. That sits against a clear class gap in the underlying tennis data: Auger-Aliassime is ranked No 4, while Droguet is No 119, and the pair already have one completed ATP-level meeting, which Auger-Aliassime won in Montpellier earlier this year [18][1][6].
That prior match is the main historical frame for reading this contract. Auger-Aliassime won in three sets, and the scoreline shows Droguet was competitive rather than overmatched, which helps explain why a short-format upset market may not be heavily skewed despite the ranking gap [10][14]. For comparison, head-to-head databases now record the rivalry as 1-0 to Auger-Aliassime, with no other completed meetings on the main tour, so the sample is too small to treat as a strong predictive signal on its own [2][6][16].
The main catalysts are straightforward: the market resolves only if the match is actually completed, and any cancellation, tie, or delay beyond seven days pushes it to 50-50 under the contract rules. Live scoreboards already list the fixture for 6 August 2026, but traders should watch for schedule changes, walkovers, and late injury or withdrawal news, as those are the largest dependencies for a result-based contract like this [4][5][9]. On the prices themselves, the key comparison point is whether sportsbook lines drift away from the market’s 50-50 framing once line-ups and court conditions are confirmed [19].
Methodology
We track National Bank Open: Titouan Droguet vs Felix Auger-Aliassime across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
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 Best Prediction Markets UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- What are the best prediction markets for UK traders in 2026?
- For UKGC-regulated markets: Betfair Exchange (sports, politics) and Smarkets (sports, politics, lower commission than Betfair). For broader global event prediction: Polymarket (deepest liquidity, 0% fee, USDC settlement). For US-regulated option: Kalshi (USD, limited UK payment options). Most serious UK traders use a combination of Betfair for regulated sports and Polymarket for broader markets.
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