Canadian Open: Alexis Galarneau vs Vit Kopriva

Platform comparison

Market context

Alexis Galarneau’s meeting with Vit Kopriva was listed for the opening round in Montreal, and the market’s 14% crowd-implied price leaves Galarneau as a clear outsider against a higher-ranked opponent. Kopriva was shown around ATP No. 70, compared with Galarneau near No. 167, which is the main reason the contract sits well below even-money despite Galarneau playing in Canada.[2][5][7]

There is no head-to-head history between the pair, so traders have to lean on recent-level comparisons rather than matchup precedent.[1][14] In that framework, Galarneau’s better recent win rates on the tour calendar and his home-country setting are the main arguments for a surprise, but they have to offset Kopriva’s stronger ranking and broader career record.[1][14][15]

The main catalysts now are whether the match actually gets played on schedule and whether the tournament updates the draw or court order, because the settlement rules treat cancellation, a tie, or a delay beyond seven days as 50-50. The official event page showed the fixture and live match page, while live-score services still had the contest listed as pending, so any late scheduling change or withdrawal would matter more than pre-match form.[3][9][13]

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 Prediction Today, which mirrors the Polymarket order book directly.

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.

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.