Warren is in his seventh season as an assistant coach for the UC San Diego men's volleyball program in 2013.
Warren helped guide the 2012 Tritons to a 9-19 overall record and a ninth-place finish in the Mountain Pacific Sports Federation (MPSF) with a 6-16 ledger. UCSD posted upsets over No. 3 UCLA, No. 9 Long Beach State, No. 11 Hawai'i, No. 12 UC Santa Barbara and No. 13 Cal State Northridge. The team strung together an unprecedented five-match win streak in league play (3/9-31), three of those victories coming on the road. For the second straight year, the Tritons climbed to as high as No. 11 in the AVCA national poll.
UCSD finished with five MPSF wins in 2011, producing upsets at defending national champion and fourth-ranked Stanford, at No. 5 UCLA, at No. 7 UC Irvine, at No. 11 Pepperdine and at home against No. 11 Hawai'i. The sweep at Stanford marked not only the Tritons' first-ever triumph at Maples Pavilion, but also snapped the 18-match home win streak of the Cardinal.
On March 24, 2011, UCSD hosted third-ranked Ohio State and took a four-set victory over the Buckeyes, who went on to win the national championship.
Senior setter Phil Bannan was an All-MPSF Second Team selection after becoming UCSD's all-time leader in assists and service aces. Middle blocker Calvin Ross took over as the school's career leader in blocks. Four Tritons were named MPSF All-Academic in 2011.
In 2010, Warren helped UCSD maintain a top-15 national ranking through the entire season. The Tritons achieved a number of program firsts in 2009, with wins over volleyball powerhouses UCLA,
Hawai'i and eventual national runner-up USC. UCSD wound up ranked 11th in the country.
Warren also served as a volunteer assistant for the University of San Diego women's volleyball team for six seasons from 2006-11.
Warren was a member of the UCSD men's volleyball team in
1991-92. During his collegiate career, he played the swing hitter and
Warren brought a wealth of coaching experience to the Tritons. He thrives on improving and building each program he’s a part of. He previously served as the head coach at American High School in Fremont. While at AHS, he gradually built the program into a competitive entity, the team making its first league playoff berth in his final season at the helm in 2006.
Warren previously held the position of girl's head coach at Sheridan High School in Englewood, Colo., where he again turned the program around. He led the squad to its first winning season in over a decade in just his second year in charge.
He was also the head girl’s coach for the City Beach Volleyball Club in Fremont from 2003-05, and So Cal Volleyball Club in 2011-12.
earned a bachelor's degree in political science from UC San Diego in 1992. He
resides in Oceanside with his wife, Amber, and five of their nine