UCLA ended the regular season at 10-5, the first winning campaign in the program's young history.
The Bruins will face Saint Mary's for bronze in the Aloha Invitational.
Grant Watson moves into a tie with Adam Plutko for 2nd most career wins in UCLA history (29).
Sunday's singles championship can be seen live on the Pac-12 Networks at 10:00 a.m.
Fattal scores season-high six goals.