Canadian Open: Daniel Merida Aguilar vs Liam Draxl

Platform comparison

Market context

Daniel Merida Aguilar and Liam Draxl are due to meet in the Canadian Open, and the market’s 100% crowd-implied price for **YES** is far more absolute than the public tennis data would usually justify before a first-round match. The pair had no recorded head-to-head before this event, and preview pages framed Merida Aguilar as the paper favourite largely on the back of his recent ATP rise and title run in Umag, while Draxl carried the edge of local familiarity in Montreal.[3][8][15] By contrast, one odds-tracking page showed the match as live with generic odds formatting rather than a clearly established, two-sided consensus, which suggests the trading market is assigning essentially no upset probability despite the underlying matchup still being unresolved on court.[2][14]

For traders, the key issue is whether the event is actually completed within the settlement rules, not just whether it starts. Several live-score listings carried the fixture for 3 August or 4 August in Montreal, but the market only resolves on a completed winner unless the match is cancelled, tied, or delayed beyond seven days, in which case it falls to 50-50.[1][4][8][18] That makes scheduling updates, court-order announcements, and any interruption from weather or prior matches the main catalysts to watch; if play is interrupted after a set or more, the contract’s non-completion rules become more important than pre-match form or any sportsbook drift.[18][19]

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 UK, which mirrors the Polymarket order book directly.

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.

FAQ

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.

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.