Top-seeded Caroline Kutach defeated #7 Christie Kurdys of California Lutheran University 6-1, 6-0 in Friday's Singles Quarterfinals.
Fifth-seeded Zoe Kaffen beat #4 Anna Tifrea of the California Institute of Technology 6-2, 6-2.
Unseeded Mary Kaffen outfought sixth-seeded Esther Bowers of fellow Southern Collegiate Athletic Conference member Southwestern (TX) University 0-6, 7-6 (6), 6-4.
The top-seeded doubles team of the Kaffen sisters prevailed 6-3, 6-2 over Amanda Rodriguez and Kindall Yeung of Whittier (CA) College in the Quarterfinals.
The Kaffens meet the unseeded duo of Nicole Alvarez and Lilijana Semak of California Lutheran in the Doubles Semifinals at 2:00 p.m.