Liu and Okada post the top-two combined times among all participating swimmers
Friday's meet marks first official competition of the Jordan Wolfrum era
This marks first time UCLA has had a nationally-ranked recruit class since 2015.
The new season also brings a new Mona Plummer Aquatic Center, as the off season brought a newly renovated deck and brand-new record board.
Hirka spent the last four years under Bowman at Arizona State, with titles ranging from undergraduate student manager to volunteer assistant to now assistant.
Wisconsin grad spent last three seasons as assistant coach at UNLV