Points won by each set: [ 39-34, 44-42 ]
Points won directly behind the serve:
53 % Isner – 42 of 78
29 % Auger – 24 of 81
Felix Auger-Aliassime [57] became the youngest semifinalist of the Miami event (18 years 233 days) and created some chances to win both sets – he served at 5:4 in the 1st & 5:3 in the 2nd set, but on both occasions he played poorly, especially in the opener when committed three double faults in his most important game. # The defending champion Isner [9] won the tie-breaks 7/3 & 7/4, establishing two new TB records: the most tie-breaks won in one event (9) & the most tie-breaks won in consecutive sets (7). “For sure [it was] nerves. It’s like I caught a virus or something. I don’t know. I couldn’t put a second serve anymore,” Auger-Aliassime said. “Even the first serve, if you put it in, you don’t have to hit the second serve. Yeah, that’s just very tough to swallow.”