Canadian Open, Qualification: Hugo Gaston vs Duncan Chan

Platform comparison

Market context

Hugo Gaston is scheduled to face Duncan Chan in Canadian Open qualifying on the Montreal hard courts, but the market is currently pricing Gaston at **0% YES** on Polymarket despite other venues showing him as the stronger player on paper. Live listing pages place Gaston around ATP No. 90 and Chan around No. 601, with the match slotted for Centre Court at 16:50 UTC / 12:50 ET, so the main question is not ranking quality but whether the event is actually played and resolved before the market’s settlement rules kick in.[2][3][4][8][17]

For comparison, this is the kind of tennis market where different platforms can diverge sharply in presentation rather than in the underlying fixture. Kalshi shows Gaston at 76% chance and prices the contract in cents, while Polymarket-style markets are often read as implied probability; Betfair and Smarkets instead quote decimal-style prices with commission layered differently, which can make the same pre-match view look materially tighter or looser depending on fee treatment and whether the venue requires full KYC for access. Similar qualifying-round markets often move on late withdrawals, draw reshuffles, or official schedule changes more than on broad rankings, and Tennis.com and the tournament’s own results page both list this as a qualifying-round match at the National Bank Open.[4][8][17]

The trader should watch the tournament’s official match page, live-score feeds, and any last-minute schedule updates from Montreal, because qualifying matches can be delayed, rescheduled, or walked over if a player withdraws. SofaScore and other live listings already show the match time and surface, while the tournament page confirms the pairing and round; if the match is not started or finished as required, the settlement outcome can fall back to the market’s 50-50 tie logic rather than a player win.[2][3][8]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Canadian Open, Qualification: Hugo Gaston vs Duncan Chan specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Kalshi Alternative UK has a different geo footprint and routes to Polymarket's order book at 0% fees.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Kalshi Alternative UK offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.