Sophomores Chan and Garrick are ranked among the nation's Top 25.
Pinizzotto posts career-best 65 to lead surge.
Chan is tied for ninth at two-under par.
Garrick opens with a 69 and is tied for seventh.
Bruins looking for their first title at LaQuinta since 2005.
Bruins finish at 27-under par; Chan ties for ninth.
Bruins' 271 (-17) is the second best round of the tournament.
Chan fires 68 to lead Bruins in opening round.
No.15 UCLA looks for its first team title of 2014.
Arboleda posts low round of the day at Mesa Verde CC.
Junior Preston Valder is tied for ninth.
UCLA graduate and defending champion John Merrick was on hand at Monday's press conference.