Crespi competes in the highly competitive C.I.F. Division I and is a member of the Mission League. The Celts currently practice and hold their practices at the Schofield Aquatic Center at Pierce College. Over the years, Crespi Swimming has built a tradition of excellence through hard work and dedication by instilling in its athletes the values of the Crespi Man. Crespi began its history of winning in 1970 when the Celts won their first league title. Since then, Crespi compiled an additional nine league titles, and was C.I.F. runner-up three times.
Coach Aaron Robinson begins his 15th consecutive season at the helm of Crespi Swimming. Coach Robinson works on campus as the Communications Manager and can be found in the Admissions Suite.
2018 proved to be a breakout season for sophomore Zac Van Zandt, who earned his first CIF D1 championship in the 100 Freestyle with the time of :44.92 breaking the school record set last year by teammate Hayden Liu. Hayden also earned his first CIF championship in the 200 IM with the time of 1:48.51. Both Liu and Van Zandt would lead their 200 Free relay to a team victory in Riverside with the time of 1:22.99 alongside seniors Sergey Ternov and Jack Chen. Sergey would go on to place 4th in the 500 Free with a time of 4:28.30. Each of the aforementioned races also mark new school records.
The Celts would go on to compete at State Finals with a team of Hayden Liu, Jack Chen, Zac Van Zandt, and Sergey Ternov. These young men finished 6nd in the state as a team with a 3rd place in the 200 Free relay re-setting a school record of 1:22.62.