The two singles players won their sets by a score of 6-0, while Westridge's No. 1 doubles team of Erin Wong and Erin McDonald won, 6-2, 6-0, 6-0.
Westridge improved to 13-0 overall and 7-0 in league, while Webb dipped to 4-9 and 2-6.
On Thursday, Maral Tavatian and Lena Tavatian won all six of their sets, as the Tigers cruised to a nonleague 15-3 home win over Marymount at Muir High. Wong and McDonald won their sets, 6-0, 6-0, 6-1.
La Cañada 13, South Pasadena 5: The Spartans were able to lock up second place in the Rio Hondo League for the second straight year with a win over the Tigers Thursday.
Sharon Kim and Sawa Keymeuler, the Spartans' No. 1 and 2 singles players, both swept Thursday, as did La Cañada's No. 1 (Alison Chang and Linnea Frazier) and 2 (Emily Swanson and Serena Zheng) doubles teams.
La Cañada (7-7, 5-1 in league) will continue league play when it takes on Monrovia at 3:15 p.m. Tuesday.
Pasadena Poly 18, Mayfield 0: The Panthers improved to 10-3 overall and 3-3 in the Prep League with the win Thursday afternoon.
Maranatha 14, Village Christian 4: Joelle Cheng and Hailey Negron won all six of their singles sets Thursday afternoon to propel the Minutemen to an Olympic League road victory. The doubles teams of Sandy Thong and Patty Ling, Gigi Yip and Michaela Trimmer, and Talar Behesnilian and Sabrina Hong each won two of three sets as Maranatha improved to 5-9 overall and 3-3 in league.
Flintridge Prep 10, Chadwick 8: Andrea Kevakian swept her three sets, 6-4, 6-3, 6-4, to spark the Rebels on Thursday in a Prep League match at Scholl Canyon Tennis Center. Jenise Vargas also swept, 6-0, 6-4, 6-3, for Flintridge Prep, which improved to 12-4, 6-2 in league.
Louisville 15, Flintridge Sacred Heart Academy 3: Emily Katz won a singles set, 6-0, for the Tologs in a Mission League match Thursday at Fremont Tennis Center. Sacred Heart dropped to 3-6, 2-5 in league.