High school

DeRego lettered four years in volleyball at James B. Castle High School in Kaneohe, Hawaii as an Outside Hitter and Setter.^[1] He was a Second-team Honolulu Star-Bulletin All-State selection and led his team to a^[2] Oahu Interscholastic Association (OIA) Eastern Division Championship. Voted James B. Castle High School Most Valuable Player and Team Captain for the Knights. ^[3] He was named the OIA Player of the Year and a First-team All-OIA selection as a junior.

College

DeRego helped guide the Pirates to a Pacific Coast Athletic Conference Championship and a spot in the Final Four in the California Community College Athletic Association CCCAA Men’s Volleyball State Championship, finishing Third-place . He was selected to the All-Pacific Coast Conference team twice and an Orange Coast College Scholar-Athlete recipient as well, placing second all-time at Orange Coast College in career digs. DeRego also earned the Orange Coast College Men’s Freshman of the Year award . DeRego later transferred to California State University, Long Beach.

He graduated from Orange Coast College with an AA degree in Liberal Arts. DeRego then graduated from California State University, Long Beach with a BA degree in Psychology.

Club

DeRego played for Creole Volleyball Club from Brooklyn, New York from the Garden Empire Volleyball Association Region (GEVA) during the 2011 and 2012 seasons. DeRego helped Creole VBC to the 2011 82nd Annual USA Volleyball Open National Championship Gold Medal, Men's Open (Gold Division) in Dallas, Texas, earning all-tournament team honors. In 2012 he again helped Creole VBC to a 7th-place finish in the US Open Championships, winning the Men's Open (Silver Division) in Salt Lake City, Utah. DeRego also played for Rukkus Volleyball Club from the Southern California Region. Team won the 2019 USA Volleyball Open National Championship Silver Medal, Men’s Open (Gold Division) in Columbus, Ohio.

In 2015, DeRego played for Kailua Volleyball Club from Kailua, Hawaii from the Aloha Volleyball Region (AH), helping the team capture the ^[4] 2015 58th Annual Haili Volleyball Tournament, Men's Open Division Championship, in Hilo, Hawaii, earning all-tournament team honors. In 2016 he again helped Kailua VBC to a 2nd-place finish in the 59th Annual Haili Volleyball Tournament, Men's Open Division Championship.