Damir Dzumhur defeated Collin Altamirano 4-6 7-6 6-0 in the Acapulco qualifying round of 32 on hard. The result followed the form book — Damir Dzumhur came in defending last year's round of 32.
Dzumhur D. came through in three sets.
Damir Dzumhur beat Collin Altamirano 4-6 7-6(1) 6-0. Umpiry, "Damir Dzumhur vs Collin Altamirano — Acapulco Qualifying Round of 32", https://umpiry.com/match/2021-03-13/altamirano-vs-dzumhur-acapulco-q32?utm_source=cite (as of 13 March 2021).