Taro Daniel of Japan defeated second seed Casper Ruud of Norway in three sets with runs of 7-5, 2-6 and 7-6 (7/5) in two hours and 57 minutes.
Frances Tiafoe from the USA, sixth on the list, also advanced to the next phase with his victory over the Spanish Feliciano López, whom he defeated in two sets with a score of 6-2 and 7-6 (8/6) in a duel of 88 minutes.
The Acapulco Open is a tournament that is part of the ATP 500 category and its prize pool reaches 1.8 million dollars, it is played on hard surface courts at the GNP Arena.
Second Round Wednesday Results
Frances Tiafoe (USA/N.6) to Feliciano López (ESP) 6-2, 7-6 (8/6)
McDonald MacKenzie (USA) def. Brandon Nakashima (USA) 6-2, 6-0
Taro Daniel (JPN) def. Casper Ruud (NOR/N.2) 7-5, 2-6, 7-6 (7/5)
Alex de Minaur (AUS) def. Jacopo Berrettini (ITA) 6-1, 6-0
Tommy Paul (USA/N.7) vs. Michael Mmoh (USA) 6-4, 2-2 retired due to injury
Taylor Fritz (USA/N.3) to Denis Shapovalov (CAN) 6-4, 6-4
Matteo Berrettini (ITA) def. Elias Ymer (SWE) 6-3, 6-3
Holger Rune (DEN/N.4) to Nuno Borges (POR) 6-0, 6-2