Alex Michelsen defeated Mackenzie McDonald 6–3, 6–2 in the second qualifying round of the Cincinnati Masters on hard court on 12 August 2024. Michelsen controlled the match from the outset, breaking McDonald's serve multiple times to secure both sets with relative ease. The decisive scoreline underscored Michelsen's superiority in the contest, as he progressed through qualifying at one of the ATP's most prestigious 1000-level events. The victory keeps Michelsen's hopes alive of reaching the main draw at Cincinnati.