Ben Shelton defeated Gael Monfils at the Australian Open, the year's first Grand Slam, in the fourth round on hard court on 20 January 2025, prevailing as the pre-match favourite with odds of 1.6 to Monfils's 2.5. The American won a tightly contested encounter 7-6, 6-7, 7-6, 1-0, with the match decided across three consecutive tiebreaks before Monfils withdrew during the fourth set. Shelton's victory over the veteran French player, who offered stiff resistance through the opening three sets, confirms his progression to the quarterfinals and strengthens his position among the tournament's rising contenders.