Jennipher Solis recorded the win for Los Altos (20-6) pitching six innings striking out five.
Dana Chavez of Los Altos went 2 for 3 scoring twice. Also Berlin Delamora went 2 for 2 with two doubles.
Carter now drops to 12-7 overall.
SOFTBALL:CIF-SS-PLAYOFFS-DIVISION 2-FIRST ROUND-LOS ALTOS 10, CARTER 6