Varsity Girls Swimming & Diving

Matthew Cox ’07 ended his first season as Germantown Academy’s Director of Aquatics, overseeing the varsity boys and girls swimming and diving programs.

The Patriots did not skip a beat in Cox's first season as Head Coach, winning the Inter-Ac League and Easterns Interscholastic Swimming & Diving Championships for the fifth consecutive season. The Patriots also took first at the Inter-Ac Invitational.

A Germantown Academy alumnus, Cox brings nearly a decade of experience with the Germantown Academy Aquatic Club (GAAC), where he served as Head Age Group Coach and Senior Assistant, helping to grow the program from 25 to over 100 swimmers and maintaining retention rates above the national average. At GAAC, Cox established essential standards, progressions, and schedules for the age group program, created a weekly newsletter to keep families informed, and designed aquatics schedules that balanced swimming and diving, maximizing pool use. He also played a key role in developing student-athletes who broke 29 school records and contributed to multiple Inter-Ac League titles, as well as helping guide two teams to Easterns Championships combined team titles in 2022 and 2024.

Before returning to GA, Cox was Assistant Swimming Coach at Upper Merion Aquatic Club, where he instructed swimmers ages 6–18 on stroke mechanics and training techniques.

Cox is a member of Germantown Academy’s Hall of Fame as part of the 2004 Boys Water Polo team. He swam collegiately at Penn State, earning a bachelor’s degree in Kinesiology, and holds a Master of Education with a specialization in Counseling Psychology, focusing on Positive Coaching.

Updated: 2/18/2026

Thomas Henninger '07 is the Head Diving Coach at his alma mater, Germantown Academy.

In 2025-26, Henninger helped the Patriots to a fifth consecutive Inter-Ac League and Easterns Interscholastic Swimming & Diving championship. Henninger had divers place 1-2-4 at the Inter-Ac Invitational, and 1-4-6 at Easterns with Ana Navarro '28 becoming the third female diver from GA to win the Easterns title.

In 2024-25, Henninger helped the Patriots to an undefeated record and an Inter-Ac League championship for the fourth consecutive year. GA divers finished 1st through 4th at Easterns, with Libby Brewer '25 becoming the first GA female diver to win multiple Easterns titles.

In 2023-24, Henninger helped the Patriots to an undefeated record and a third consecutive league title. GA swept the top three spots at Easterns, with Laurel DePolo '25 claiming the top spot.

In 2022-23, Henninger and the Patriots won the Inter-Ac League with an undefeated record. Libby Brewer '25 became the first female diver in GA history to win at Easterns as GA took the top two spots.

in 2021-22, the Patriots went undefeated and won the Inter-Ac League title. At Easterns, GA had two divers finish in the top five.

After graduating in 2007, he competed for the University of California, Berkeley where he helped the Bears win the NCAA Division I Team Title in 2011. Tom's accomplishments include being a Junior Olympic and Senior National Qualifier, PAC 10 Finalist, GA Record Holder, NCAA Qualifier, Inter-Academic League Record Holder. Tom also has five years of Junior Olympic coaching experience (Centennial Diving) and has spent two summers working with John Wingfield (2008 Olympic Head Diving Coach) along with various Olympic, collegiate, and international coaches at Ripfest Diving Camp in Indiana. Tom is fully certified and safety trained through USA Diving, USA Swimming, American Red Cross, and Amateur Athletic Union.

Updated: 2/18/26