OK, so here’s the deal:

UCLA beats USC: UCLA in at 6-3 in conference play, 7-5 overall.
UCLA loses (5-4), ASU beats Cal at home (5-4), Utah beats Colorado at home (5-4): ASU in.
UCLA loses (5-4), ASU wins (5-4), Utah loses (4-5): UCLA in.
UCLA loses (5-4), ASU loses (4-5), Utah wins (5-4): Utah in.
UCLA loses (5-4), ASU loses (4-5), Utah loses (4-5): UCLA in.