Tobias Rotegaard had 17 points for the Beach (16-10, 12-2 Big West Conference). Jadon Jones added 17 points and eight rebounds. Aboubacar Traore had 16 points.
The 103 points were a season best for Long Beach State, which also achieved season highs with 16 3-pointers and 26 assists.
UC San Diego totaled 57 second-half points, a season high for the team.
Jake Kosakowski scored a career-high 26 points for the Tritons (11-15, 5-10). Bryce Pope added 15 points. Francis Nwaokorie had 11 points.
The Beach improve to 2-0 against the Tritons for the season. Long Beach State defeated UC San Diego 87-69 on Jan. 20.
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