National Bank Open: Raphael Collignon vs Alexei Popyrin

Platform comparison

Market context

Raphael Collignon against Alexei Popyrin in the National Bank Open sits close to a coin-flip on the information available, but the crowd’s 60% YES price points to Collignon being judged a modest favourite. That is broadly in line with the only clearly visible book-style pricing in the search results, where Collignon was shorter than Popyrin at roughly 1.67 versus 2.05 on one comparison page, and with Tennis Tonic’s pre-match lean to Collignon at 1.727 against 2.1 for Popyrin[9][16]. The gap is not large, so the market is effectively saying Collignon’s edge exists, but it is not decisive.

The most relevant historical marker is their Halle meeting in June, when Collignon beat Popyrin 6-4, 6-2 on grass[1][4][5][8]. Form also cuts the same way: one source has Collignon at 36-14 this season, versus 10-19 for Popyrin, while another shows Popyrin struggling to string together main-draw wins and Collignon winning 19 of 21 matches against non-top-100 opponents[1]. That makes the current probability easier to read than a generic head-to-head, because the prior result and seasonal record both support a Collignon lean rather than a pure 50-50.

For traders, the main catalysts are the official order of play, whether the match remains on the published schedule, and any late injury or withdrawal news before first serve, because the contract has a 50-50 fallback if the match is not played, tied, or delayed beyond seven days. The spread between sportsbook-style pricing and the crowd line is meaningful but not extreme, so any sharp move would most likely come from lineup confirmation or a material change in perceived fitness rather than from the historical data alone[9][16].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.