Instructor Bios

Kathleen Collins-Bell (Director)

Kathleen directs the Racquet Sports Program at Campus Recreation. She holds a B.A. from George Washington University, where she was a four-year tennis scholarship recipient, playing number one and two singles. As a junior player, she held a top five ranking in the New England region and a national ranking. She was the assistant Women’s’ Tennis coach at Georgetown University from 1987-1993, and served as the Head Tennis Professional at Sutton Racquet Club from 1991-1999. She provides instruction to many children and adults ranging in skill level from novice to expert.

Randy de Guzman (Tennis)

Randy is a Master of Tennis for Performance, certified by Professional Tennis Registry (PTR); he is also certified in Adult Development. As Head Coach of Gonzaga College High School, the team has been undefeated since 2019. Coach de Guzman 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 on a tennis scholarship . 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 Georgetown Campus Recreation Tennis with a mission to get more people to enjoy playing tennis.

George Dwyer (Pickleball)

George is a PPR-certified pickleball coach based in the Washington, DC region and serves as Pickleball Instructor for Georgetown Campus Recreation. He began coaching pickleball in 2019 for the City of Alexandria’s Department of Recreation, Parks, and Cultural Activities. And looks forward to conducting clinics, events, and private lessons for Georgetown Campus Recreation. George works with students of all skill levels and also writes for Pickleball Magazine. George will compete in the 2023 Ireland Open in Dublin later this year. He earned a Master’s Degree in Executive Leadership from Georgetown University’s McDonough
School of Business (2005), and a Doctor of Liberal Studies degree at Georgetown’s School of Continuing Studies (2016).

Diana Kussainova (Tennis)

Diana serves as the assistant coach of the Men’s & Women’s tennis teams at Georgetown. She is also an accomplished NCAA Division 1 student-athlete with over 8 years of practical teaching experience. Diana’s collegiate experience includes holding a B.A. from George Washington University, as well as a M.A. from CityU where she competed for the University Sports Federation of Hong Kong. Her experience includes private coaching at The Ritz Carlton in Miami, FL – teaching adult clinics and the junior summer camp. Diana focused on improving technique, rallying, and other fun aspects of tennis to create a cohesive education program. Diana’s favorite teaching style includes a mix of private and semi-private lessons. She always brings her passion and expertise to the court, helping you become a better player that comes to love the game as much as she does!

Jeff Mays (Tennis)

Jeff Mays has devoted his life to teaching tennis to children and adults of all levels. With the DC Department of Parks and Recreation, he helped organize a city-wide tennis program for youth and adult players. From 2008 to 2011, Jeff was the Manager of the Adult Sports and Tennis Programs for the DC Parks and Recreation-Athletic Programs Administration. Jeff is currently the Director of Tennis at the Sutton Racquet Club, where he has been since 2011. He also has been a tennis professional at Georgetown’s campus recreation since 2015. Over the course of his career, Jeff has coached youth and adult players, and in 2014 he was named Tennis Professional of the Year by the United States Tennis Association.

Nadeem Qureshi (Squash & Racquetball)

Nadeem has been playing several racquet sports since he was seven years old. He is a former five-time National Capital squash champion, Mid-Atlantic racquetball doubles champion, #2 ranked singles player, and an avid tennis player. He has taught individual and group lessons to both adults and juniors in private clubs in the Washington, DC area; Seattle, Washington; and Houston, Texas. He has also competed nationally in squash all over the country and regionally in racquetball, winning many championships.