SAN DIEGO (AP) — Former NCAA singles champions Mackenzie McDonald and Marcos Giron won their matches Wednesday at the San Diego Open ATP 250.
McDonald beat error-prone Henri Laaksonen of Switzerland 6-0, 6-2 in just 54 minutes.
Third-seeded Giron moved into the quarterfinals with a 6-4, 6-3 victory over Argentine Tomas Martin Etcheverry. The world No. 58 converted four of six break-point opportunities and finished with 30 winners to 17 unforced errors.
McDonald, who swept the NCAA singles and doubles titles at UCLA in 2016, earned a rematch in the second round against Jenson Brooksby.
"I'm happy with how I'm playing. I love being in California," McDonald said. "Henri's a great player. I just think I took it to him today, played my game."