Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
75% | 25% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
75% | 25% | 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 |
|---|---|
| National Bank Open: Nuno Borges vs Luciano Darderi Set 1 O/U 8.5 | 75% |
| National Bank Open: Nuno Borges vs Luciano Darderi Set 1 O/U 9.5 | 75% |
| National Bank Open: Nuno Borges vs Luciano Darderi Set 1 Winner | 74% |
| National Bank Open: Nuno Borges vs Luciano Darderi | 73% |
| National Bank Open: Nuno Borges vs Luciano Darderi Match O/U 21.5 | 69% |
| National Bank Open: Nuno Borges vs Luciano Darderi Set 2 Winner | 62% |
| National Bank Open: Nuno Borges vs Luciano Darderi Match O/U 22.5 | 59% |
| Completed Match | 50% |
| National Bank Open: Nuno Borges vs Luciano Darderi Set 2 O/U 8.5 | 50% |
| National Bank Open: Nuno Borges vs Luciano Darderi Set 2 O/U 9.5 | 50% |
| National Bank Open: Nuno Borges vs Luciano Darderi Set 1 O/U 10.5 | 50% |
| National Bank Open: Nuno Borges vs Luciano Darderi Match O/U 23.5 | 50% |
| National Bank Open: Nuno Borges vs Luciano Darderi Set 2 O/U 10.5 | 50% |
| National Bank Open: Nuno Borges vs Luciano Darderi Set Handicap +/-1.5 | 45% |
| National Bank Open: Nuno Borges vs Luciano Darderi Total Sets: O/U 2.5 | 41% |
Market context
Nuno Borges and Luciano Darderi are due to play in Montreal, with the market currently pricing Borges at roughly 63% after a short-term move in line with live tennis models showing Darderi only a modest favourite. The crowd-implied number sits close to the live match probability reported by Tennis Temple, which had Darderi at 64.4% and Borges at 35.6% before any result was recorded, so the market is not leaning on a large misprice.[2]
The historical frame is mixed but useful: Borges leads the overall head-to-head 3-1 on the ATP/aggregated stats pages, yet Darderi won their most recent meeting on clay in July 2026, a reminder that recent form and surface can outweigh the longer sample.[14][12] Sportschau also lists the pair’s Montreal meeting as an August 8 Round of 16 fixture, and both players entered with comparable tournament workloads, which typically keeps probability bands fairly tight for a best-of-three match.[5][9]
For traders, the main catalyst is simple: whether the match is actually completed within the settlement window, and whether a scheduled start slips. The official National Bank Open match page currently shows no completed point data for this tie, while event listings still reference the matchup as an upcoming or live fixture, so any late change to court order, retirement, or postponement would matter more than background rankings.[1][3] If the match is played normally, Borges’ path looks supported by the market’s current edge; if it is delayed beyond seven days or never staged, the market rules force a 50-50 resolution.
Methodology
We track National Bank Open: Nuno Borges vs Luciano Darderi 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
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
UK Frequently Asked Questions
- 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.
- 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.
- 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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