Desert Vista's Melissa Kahn and ViAnn Pham of Mountain Pointe will meet in the Saturday's third round of the Division I state tournament.
Kahn, the fifth seed, had a first-round bye and then swept Highland's Olivia Bray, 6-0, 6-0.
The unseeded Pham won her two matches 6-1, 6-0 over Dobson and then beat an opponent from Carl Hayden 6-0, 6-0.
They will play around 3:30 p.m. at Scottsdale Ranch Park and Tennis Center, which is located at 10400 E Via Linda.
The winner advances to quarterfinals where either MacKenzie Nickerson of Chaparral or Chloe Weihs of Centennial will be waiting on May 2.
The Thunder's tandem of Yolena Carlon and Tori Kammerzell advanced easily as the second seed should with a bye and 6-1, 6-0 win over their opponents from Hamilton.
They face Catherine Lontz and Sarah Moskowitz of Pinnacle around 11:30 a.m. Saturday.
The Thunder's other tandem - Anne Carsey and Mikayla Mularoni - lost in the second round to the top seeded duo from Xavier.
Mountain Pointe's Rachel Mantlik and Jessica Fong lost 7-5, 7-5 in the first round.
On the boys side of the DI state tournament, Desert Vista's Yusuf Saleem and Aditya Bollam are still alive in the doubles tournament with wins of 7-5, 6-2, and 6-0, 6-0.
They will face Pinnacle's fourth-seeded tandem of Ryan and Michael Headley around 1 p.m. at Scottsdale Ranch.
The Pride duo of Justin Williams and Harrison Collins lost in the second round.
Mountain Pointe's Duke Cobb lost in the first round of singles action.