Freshman Bryce Pereira and his doubles partner junior Maxime Cressy fell in a tiebreak 7-6 (3).
Sophomore Evan Zhu and senior Martin Redlicki defeated Ohio State's Martin Joyce and JJ Wolf 7-5. The UCLA pair will return to play for the NCAA championship in doubles.
Senior Logan Staggs lost his first set 3-6 to the Buckeyes’ Kyle Seelig.
Freshman Connor Hance added his 18th win to his debut season.
Freshman Keegan Smith's match against Ohio State's John McNally went unfinished, but Smith will be returning to play in the NCAA singles and doubles competitions.
Staggs fought to a third frame on court four, but couldn't best Seelig, who won 6-3, 3-6, 6-3.
Redlicki resumed his singles play against Ohio State Mikael Torpegaard after a three-hour rain delay.
Cressy losing to Ohio State's Martin Joyce 3-6, 6-3, 3-6 marked the Bruin's loss during their NCAA semifinal against Ohio State.
With the loss against Ohio State, the Bruins finished their season with a 30-3 record.