Defending champion Joel Stalter heads into Friday's final round in second place.
Defending champion JoŽl Stalter leads the way with five-under 67 while all five Golden Bears are in top 10.
Golden Bears have won four of six starts in 2013-14.
Hahn, Homa and Wi all well below projected cut after three rounds.
Former Golden Bear tied for 28th place after 36 holes.
Hahn's three-under par 69 has him tied for 26th while his chest bump is adding to his popularity.
Desimone inducted into NCGA Hall of Fame; Hahn, Homa and Wi in Pro-Am.
Michael Weaver, Brandon Hagy and JoŽl Stalter are among 30 collegiate golfers up for prestigious honor.
Brandon Hagy and JoŽl Stalter share individual medalist honors.
Golden Bears trail second-round leader USC by two strokes.
Golden Bears back in action for first time since October with 21 wins over last 33 stroke-play events overall.
Former Cal player and 2012-13 collegiate player of the year opens with two-under par 70 at Farmers Insurance Open.