National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga

Platform comparison

Market context

Alexei Popyrin’s first-round match against Roman Andres Burruchaga at the National Bank Open is being priced as a lopsided favourite, but the market picture is not unanimous. Tennis.com’s projected winner model has Popyrin at 64% and Burruchaga at 36%, while BetUS lists Popyrin around -155, roughly 61% implied before vig, which is much firmer than the current prediction market reading of 100% YES on Popyrin.[1][11] By contrast, recent tournament and match listings still frame the contest as live and unresolved, with Burruchaga appearing in some live-score feeds as the opponent in Montreal and the head-to-head record remaining 0-0.[4][8]

Historical context argues against reading any tennis match as effectively certain, even when one side is clearly favoured. Popyrin is the defending National Bank Open men’s champion, having beaten Andrey Rublev in Montreal in 2025, which helps explain why models and bookmakers lean his way on hard courts.[16] However, Burruchaga is not being treated as a non-entity: the ATP rankings shown in live listings place him higher than Popyrin, and preview pieces still identify Popyrin as the tip rather than a locked result, suggesting the consensus is advantage Popyrin rather than certainty.[3][5][9]

The main catalysts for this contract are scheduling and official match status rather than form alone. The tournament’s own site lists the pairing in the Day 1 recap and the match results page, but the latest accessible result feed also shows the contest as completed, which matters because the market only resolves to a player if the match advances with a winner and falls back to 50-50 if it is cancelled, tied, or delayed too long.[7][14] Traders should watch for any ATP or tournament confirmation on whether the match was played on the original date, because several third-party listings still show different timestamps and statuses, a sign that cross-platform feeds have not fully converged.[2][6][10]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets, which mirrors the Polymarket order book directly.

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.

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.

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.

Do I need to KYC for this market?

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

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.