Bio updated entering 2025 season
David Diaz is in his third year at San Diego State and has over 10 years of college coaching experience as both an assistant coach and goalkeeper coach. SDSU has been ranked nationally in each of Diaz’s two years on The Mesa and has been one of the best defensive teams on the West Coast.
In 2024, SDSU’s first season in the WAC, they went undefeated (7-0-1) and won the regular season championship after shutting out their opponent in six of their eight matches. In total, the Aztecs won 10 matches, their most since 2011. Individually, four Aztecs made the WAC first team, including Djibril Doumbia winning Goalkeeper of the Year, and two more made the second team, which set a school record for first team selections and total honorees. After the season, Reid Fisher was selected 23rd overall in the MLS SuperDraft, becoming the third Aztec to be drafted in the last three years, and the second in the first round.
In 2023, the Aztecs were the last team in the nation to concede their first goal, a school record stretch of 651 minutes to begin the season. SDSU rose as high as No. 17 in the national rankings after going undefeated in non-conference play (6-0-2) for the second time in the last three years. Additionally, the starting goalkeeper Logan Erb was named to the 2023 All-Pac-12 Second Team.
Diaz is also the Goalkeeper Director and Head Coach for the East County Surf and holds a USSF C Coaching License.
Diaz was most recently at Cal State San Marcos where he was an integral part of the coaching staff for two seasons. At CSUSM, he helped to produce five all-conference selections and acted as the program’s assistant/goalkeeper coach and ID camp director.
In addition to Cal State San Marcos, Diaz has held various roles at the D1, D2, D3 and NAIA level. He has made stops the following universities, working with both men’s and women’s programs: Cal State Fullerton, Cal state Dominguez Hills, Cal Poly Pomona, Whittier College, and Hope International University.
Diaz has also worked with youth players as a director and head coach with numerous clubs in Southern California since 2010. He is currently the Director of Goalkeeping and a head coach for East County Surf. Prior to joining East County Surf, he had similar roles at DMCV Sharks, Legends FC and Fullerton Rangers Soccer Club. Diaz has earned the Premier Diploma and Goalkeeper Level 3 Diploma from the United Soccer Coaches (USC), and currently holds a USSF C License.
A native of Whittier, Calif., Diaz played for various clubs in Southern California during his youth career, before joining the Seahorses of Orange County. As a collegiate student-athlete, Diaz started his career as a walk on redshirt at SDSU, before transferring to Rio Hondo College, and eventually Whittier College where he played his final three seasons. At Whittier he was a three-year starter and helped lead his team to three consecutive Southern California Intercollegiate Athletic Conference (SCIAC) Tournament appearances. In his three seasons he played in 56 matches and compiled 11 shutouts with 248 saves. In his senior season alone, he posted 117 saves and a save percentage of .812. Diaz graduated from Whittier College with a bachelor’s degree in kinesiology and nutritional sciences in 2013.