Casper Ruud defeated Alex De Minaur 6–3, 6–3 in a round-robin match at the United Cup, a 250-tier ATP event on hard court on 3 January 2026. Ruud's dominant performance saw him dispatch the Australian in straight sets, controlling both frames with consistent tennis. De Minaur struggled to find rhythm against the Norwegian's baseline game, unable to mount sustained pressure or break serve at crucial moments. The emphatic scoreline underscores Ruud's strong form heading into the Australian Open season and represents a significant statement in the tournament's group stage. This result strengthens Ruud's position in the round-robin standings and suggests continued momentum in his preparation for the year's opening Grand Slam.