Matt Treadway and Jayden Francis each won two individual events and swam on a winning relay team for the San Marcos boys in a 112-71 Channel League dual meet win over Santa Ynez on Thursday.
The San Marcos girls also won 123-52.
Treadway took the 200 IM in 2:00.98 and 100 Breast in 1:02.59. Francis won the 200 free (1:46.76) and led a San Marcos sweep in the 100 fly ( 54.63). Jaran Depew and Asher Steelman were second and third.
In the relay, they were joined by Merrick Larbig and Depew and clocked 1:44.29.
Also winning events for the Royals were Caden Heinze in the 50 free (23.07), Charlie Franzen in the 100 free (53.58) and Zachary Dell in the 500 free (5:06.07).
For the San Marcos girls, Holland Woodhouse won the 100 back (1:02.29) and 100 breast (1:12.78) and was part of the first-place 200 free relay with Dori Larbig, Angie Cummings and Olivia Akin. They clocked 1:49.14.
Hannah Meyer swam on the winning 200 medley relay (2:00.26) with Cummings, Zosia Amberger and Angie Drake, and won individual events in the 200 IM (2:21.72) and 100 fly (1:06.15).
Madi Sparre was a double winner for the Royals, taking the 200 free (2:05.45) and 500 free (5:38.42).