The Malibu High School boys varsity water polo team dominated the Agoura High School Chargers 12-8 Saturday evening to win the final game of the Malibu Varsity Tournament. The final-day victory capped an undefeated 4-0 run through the three-day tournament for the Sharks, who finished first out of 16 teams. On Thursday, the Sharks turned away Tri-Valley League rivals by a convincing 13-3 score. Next came a 11-5 win over Flintridge Prep, followed by a 13-4 smackdown of Division II Calabasas. The tight, 12-8 victory over Agoura in the title game was the closest match of the tournament for the Sharks.