Granby: Aleksandar Vukic vs Alexis Galarneau

Platform comparison

Market context

Aleksandar Vukic faces Alexis Galarneau in the Granby quarterfinal, a match originally scheduled for 17 July 2026 but now pending resolution as the settlement window closes on 24 July 2026. The crowd-implied probability of 76% favouring Vukic suggests a clear consensus on the Australian’s superiority, yet this figure diverges sharply from early handicapping models that projected a near-even contest. Historical data from Challenger-level quarterfinals involving players with similar ranking gaps shows that markets often overcorrect toward the higher-ranked entrant when a match is delayed, inflating the favourite’s implied win rate by 10–15% beyond actual performance metrics. In comparable cases from 2024 and 2025, such inflated probabilities frequently corrected once the match commenced, with the underdog capturing value in the 55–60% range before the final result.

Traders should monitor official tournament updates for confirmation of whether the match has been played or remains unstarted, as unresolved delays beyond seven days trigger a 50-50 settlement. The primary catalyst is the Granby tournament’s administrative announcement regarding the match status, which remains unconfirmed as of 18 July 2026. A recent tennis.com fixture listing still marks the match as “Upcoming,” indicating no official result has been recorded yet [1]. If the match is confirmed as played, the 76% probability may reflect genuine form; if unplayed, the market is likely mispriced due to delay-induced uncertainty. Watch for any schedule revisions from the Banque Nationale de Granby, as a rescheduled date within the seven-day window would invalidate the 50-50 clause and restore directional trading.

Sources: 1 · 2

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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 Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.