In Tulsa, Okla.
Northern California results
Second roundGustav Hansson, Mississippi, def. Tom Fawcett (9-16), Stanford, 6-3, 2-6, 6-4.
Mackenzie McDonald (6), UCLA/Piedmont, Calif., def. Quentin Monaghan, Notre Dame, 6-4, 6-1.
First roundDiego Hidalgo and Gordon Watson (1), Florida, def. Tom Fawcett and Maciek Romanowicz, Stanford, 6-3, 3-6 [10-7].
Herkko Pollanen and Mikael Torpegaard, Ohio State, def. Rhys Johnson and Cameron Klinger of San Jose (5-8), Vanderbilt/Klinger from San Jose, Calif., 6-3, 4-6 [11-9].
Boris Arias and Jordan Daigle (5-8), LSU, def. Shawn Hadavi and Richard Pham, Columbia/Pham from Saratoga, Calif., 6-3, 6-2.
Filip Bergevi and Florian Lakat (5-8), Cal, def. Alex Alvaro and Ramon van Flymen, Eastern Kentucky, 6-4, 6-4.
Mackenzie McDonald and Martin Redlicki (2), UCLA/McDonald from Piedmont, Calif., def. Thai-Son Kwiatkowski and Mac Styslinger, Virginia, 6-2, 7-6 (3).
Second roundDesirae Krawczyk, Arizona State, def. Klara Fabikova (9-16), Cal, 6-3, 7-6 (5).
Maegan Manasse (6), Cal, def. Yuliya Lysa, Arkansas, 7-6 (6), 6-1.
First roundHadley Berg and Paige Cline, South Carolina/Berg from Greenbrae, Calif., and Cline from Kentfield, Calif., def. Miho Kowase and Anna Sanford, Ohio State, 6-4, 1-6 [10-5].
Maegan Manasse and Denise Starr (4), Cal, def. Mai El Kamash and Arianne Hartono, Mississippi, 2-6, 6-1 [10-8].
Mayar Sherif Ahmed and Rana Sherif Ahmed, Fresno State, def. Taylor Davidson and Caroline Doyle (5-8), Stanford/Doyle from San Francisco, 6-2, 7-6 (0).
Breaunna Addison and Danielle Wagland, Texas, def. Giuliana Olmos and Gabby Smith (5-8), USC/Olmos from Fremont, Calif., 6-4, 6-1.
Mami Adachi and Aldila Sutjiadi (2), Kentucky, def. Melissa Lord and Carol Zhao, Stanford, 2-6, 6-2 [11-9].