Ben Shelton defeated Alex De Minaur 6–3, 6–4 in the Canada Masters quarter-final on hard court on 5 August 2025, delivering an upset against the pre-match favourite. De Minaur, who carried odds of 1.65 to Shelton's 2.4, could not maintain the form required against the American, who controlled both sets with composed play. Shelton's victory represents a significant scalp at Masters 1000 level and suggests growing confidence in his performance against established top-10 opposition. The result advances Shelton to the semi-finals whilst De Minaur's campaign ends at the quarter-final stage.