World No. 1 Carlos Alcaraz suffered a stunning defeat to 36th-ranked Sebastian Korda in the third round of the Miami Open, 6-3 5-7 6-4, ending his unbeaten run since winning the Australian Open. Korda, a Florida native, mixed up his game effectively, using serve-and-volley tactics to claim his first victory over a top player, overcoming Alcaraz's early dominance. The American's win, described as taking the 'scenic route', marks his biggest career achievement. Aryna Sabalenka cruised to a 6-4 6-2 win over Catherine McNally, advancing to the quarter-finals and continuing her pursuit of the 'Sunshine Double' after Indian Wells success.

Other notable results saw reigning Australian Open champion Elena Rybakina, Jessica Pegula, Taylor Fritz, Tommy Paul, and Arthur Fils progress. Alcaraz's exit, his first loss of the season, ends a run that began with his seventh Grand Slam title in Melbourne.