Chapman University

Ringo Bossenmeyer joined the men's basketball coaching staff for the 2025-26 season after a highly successful coaching career at Tustin High School.

Rossenmeyer won over 500 games as a high school coach was named Orange County Coach of the Year three times and coached high school basketball for 31 years. He coached at Orange High from 1991 to 1997.

He led Tustin to the CIF 3A championship in 2013 when the Tillers had a school record 31-3. He led Tustin to 23 CIF playoff appearances and two appearances in the semifinal round of the CIF playoffs. The Tillers won league titles in 2012, 2013, 2015, 2017 and this past year when the team went 24-7 and captured two playoff victories.