Canadian Open, Qualification: Hugo Gaston vs Duncan Chan

Platform comparison

Market context

Hugo Gaston is scheduled to play Duncan Chan in the Canadian Open qualifying draw in Montreal, on outdoor hard courts, with Gaston listed around ATP No. 90 and Chan around No. 601. The market’s 0% crowd-implied price is at odds with venue data and market pricing elsewhere, where the same fixture has been posted as an actual match rather than a cancellation case, so the cleanest programmatic read is that the key variable is whether the scheduled contest is formally started and finished, not whether the pair remain on the order of play.[1][3][7][19]

For historical framing, this is the sort of one-off qualifying market where a low-probability outsider can still matter if the favourite is withdrawn, delayed, or the draw is reshuffled, but there is no recorded head-to-head to anchor a model on prior matchups.[4][15] In comparable ATP qualifying listings, price discovery is usually driven more by ranking gap, surface, and live order-of-play changes than by matchup history, so a trader watching bots or conditional orders would typically key off official match status, walkovers, and late court assignment rather than pre-match chatter.[1][11][19]

The main catalysts are operational: confirm whether the match is placed on Centre Court, whether the start time slips, and whether the tournament’s live results feed moves from scheduled to in-play or completed, as these are the triggers that matter for automation and settlement logic.[1][7][11] Independent listings show the fixture as part of the qualifying round with a set start time on 1 August, while the tournament results page and live-score pages are the quickest indicators that the match has begun and therefore moved away from any 50-50 cancellation outcome.[1][7][8]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Canadian Open, Qualification: Hugo Gaston vs Duncan Chan 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.

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.

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 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.