Simpson, Jr.'s points came on 5 field goals, 1 three pointer and 9 of 16 free throws during the game.
Trumann Gettings added 18. Harvard Westlake fell to 14-4 overall while Chaminade improved their record to 12-2.
Player of the game
Harvard Westlake's next game is scheduled to be played at on Wednesday May. 19 versus Crespi. Chaminade will travel to on Friday May. 14 to play Notre Dame.