Preceding Hayashi was long-time principal Patricia Pedersen, who retired in July 2009 following the graduation of the Class of 2009 of Waipahu High.

[4] Waipahu High School fields teams in the following sports: WHS competes in the OIA Western Division.

[Those sports are air riflery, bowling, cross country, judo, paddling, tennis, track, golf, and wrestling.]

The 2005-2006 Boys Varsity Volleyball team won the first OIA White Division Championship in a sweep of Aiea.

The 2011-2012 Boys Varsity Baseball team were OIA White Champions and won their First State Division II Title in school's history completing a perfect season of 15-0.

The 2018 Boys Varsity Football team were OIA Red Champions and won their first State Division I Title in school's history.