Howell's points came on 9 field goals and 4 of 4 free throws during the game.
Makiah Morris added 11. Vista fell to 6-3 overall while San Marcos improved their record to 3-1.
Player of the game
Vista's next game is scheduled to be played at Escondido High School on Friday Dec. 14 at 7:00pm versus Escondido. San Marcos will host Damien on Friday Dec. 14 at 11:00am.