Monday
At River Oaks Country Club
Houston
Purse: $549,230 (WT250)
Surface: Clay-Outdoor
Singles
First Round
Sam Groth, Australia, def. Victor Estrella Burgos, Dominican Republic, 7-6 (3), 6-4.
Federico Delbonis, Argentina, def. Ricardas Berankis, Lithuania, 6-2, 7-6 (5).
Sam Querrey (8), United States, def. Marinko Matosevic, Australia, 4-1, retired.
Go Soeda, Japan, def. Lleyton Hewitt, Australia, 4-6, 7-6 (3), 6-3.
Doubles
First Round
Victor Estrella Burgos, Dominican Republic, and Joao Souza, Brazil, def. Kevin Anderson, South Africa, and Frank Moser, Germany, 6-4, 7-5.
Robert Lindstedt, Sweden, and Jurgen Melzer (3), Austria, def. Chris Guccione, Australia, and Andre Sa, Brazil, 7-5, 6-4.