Second-round matches at the ATP 250 clay-court tournament in Houston, USA, concluded on Thursday, April 3rd.
Brandon Nakashima (USA, 4) defeated Mackenzie McDonald (USA) 6-1, 7-5.
Kei Nishikori (Japan, 8) retired against Christopher Eubanks (USA) with the score at 1-6.
Alex Michelsen (USA, 5) overcame Adrian Mannarino (France, LL) 6-7(0), 6-4, 6-2.
