National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga

Platform comparison

Market context

Alexei Popyrin’s first-round meeting with Roman Andres Burruchaga at the National Bank Open resolved in Popyrin’s favour after the scheduled Montreal match was played, so the contract’s 100% crowd-implied price ultimately pointed at the eventual winner rather than a genuine coin flip. The pre-match picture was far less one-sided than that price suggests: Tennis.com’s model had Burruchaga as a 64% projected winner, while other trackers leaned the same way, with 365Scores and similar feeds showing Burruchaga as the market-side favourite and Tennis Ratio highlighting Popyrin’s poor recent form, including a seven-match losing streak. [5][11][2]

The best historical comparison is a ranking-versus-form clash on hard court: Popyrin carried the higher profile and home-country context, but Burruchaga entered with stronger recent results and a more stable 2026 win rate in the publicly available form data. In similar ATP early-round match-ups, prediction markets can drift hard towards the player with better recent results, but the final settlement still turns on whether the match is completed and who advances, not on pre-match consensus. The tournament’s official result page shows the match was completed on 4 August, which removes the main settlement risk that would have mattered if play had been delayed beyond the seven-day window. [7][3][16]

For traders, the key catalysts were the official order of play, any weather or scheduling disruption in Montreal, and whether either player withdrew before or during the match. Because the market description pays 50-50 if the match is not played, tied, or delayed beyond seven days without a winner, the practical risk was not only who was better, but whether the fixture stayed on the court at all. Once the National Bank Open posted a completed result, that dependency disappeared and the contract became a straight binary on the on-court outcome. [7][1][4]

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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

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.

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.

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.