Tyler Collier birdied two of his final three holes on Wednesday.
UCLA is within six shots of the fifth position and a trip to Eugene.
Freshman Cole Madey had an eagle and three birdies on Monday.
The Kohler NCAA Regional starts on Monday and runs through Wednesday.
Jonathan Garrick was T-2 at this week's Mackenzie Tour qualifier.
The Bruins will travel to Kohler, Wis. for Regional play (May 16-18).
Jonathan Garrick was All-Pac-12 2nd Team, Cole Madey was All-Freshman.
Corey Pavin was named to the Pac-12 All-Century Team on Tuesday.
Freshman Cole Madey tied for 15th at the Pac-12 Championships.
Sophomore Tyler Collier shot a 1-under 70 on Saturday.
Senior Jonathan Garrick is tied for third, three back, after 36 holes.
The 72-hole Pac-12 Championships run from Friday through Sunday.