Randy (Ronaldo) de Guzman

Randy is a Master of Tennis for Performance as certified by Professional Tennis Registry (PTR); certified for Performance and Adult Development. He is also Head Coach at Gonzaga College High School and was named 2019 Tennis Coach of the Year by The Pigskin Club of Washington, Inc. 

As a player, Randy was a top junior in the Philippines and played his first year of college at Southern Illinois University at Carbondale. After freshman year, Randy continued his education back in the Philippines where he also played college tennis and some professional events.

Coaching for Randy began in the Philippines in 1998, working with nationally ranked junior players and teams. He immigrated to the US in 2006 and has then gained even more experience coaching and working with players of all ages and all levels. 


His passion continues through DG Tennis with a mission to get more people to enjoy playing tennis.

Joel Locsin

Joel is a PTR Professional and began teaching tennis in 2004. Born and raised in Manila, Philippines, Joel was a former top 25 junior in the 18 & under national rankings. He immigrated to the United States in 2001 and was ranked in the top 25 Men’s Open division in the Mid-Atlantic. Joel continues to have love for the sport through teaching and playing.  


Joel’s coaching/teaching experience includes working as an assistant pro at the Country Club of Culpeper and Culpeper Tennis Center in Virginia. He teaches players of all ages and skill levels and has helped coach junior players into playing college tennis. Joel is dedicated on building good technique and good character on and off the court. 


Beyond tennis, Joel holds a Bachelor’s degree in Nursing from James Madison University and was an ER nurse for 12 years. In 2016, he obtained his Master’s degree in Nursing from the University of Virginia to become a Family Nurse Practitioner. 

To book a lesson with Joel, please click the link below and send him an email to coordinate your schedule.


Andy Borman

Andy was part of Gonzaga high school's WCAC championship teams in 2016, 2017 and 2019. He was the team captain in 2018 and 2019. Andy was also the WCAC individual champion in 2017 at #5 singles and 2019 at #3 singles and #2 doubles.

Before SHRA, Andy worked at the Chabad Lubavitch in Fairfax and Poplar Heights Recreation Association in Fall Church, Virginia. He is also a court monitor for USTA tournaments.