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 PTR Master of Tennis and ITPA-certified coach with 30+ years of experience. As Head Coach at Gonzaga College High School, he’s led multiple WCAC championship teams and developed players at the junior, high school, and collegiate levels.
He specializes in clean contact, strong fundamentals, and building confident players of all ages. Randy coaches full-time with Georgetown Campus Recreation and DG Tennis and volunteers at his sons’ school, where he’s guided back-to-back championship teams.
Known for his positive energy, clear instruction, and passion for teaching, Randy brings professionalism and enthusiasm to every session.

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).
Danny Omaboe (Tennis)
Danny is a highly accomplished tennis professional with decades of experience as both a competitive player and instructor. A former professional player with an ATP singles ranking of No. 986, he represented Ghana in Davis Cup competitions for five years and competed at Junior Wimbledon before transitioning into coaching. With a passion for teaching, Danny has held key roles at prestigious clubs and facilities throughout the DMV area.
Danny offers individual and group lessons to recreational and competitive players. His expertise includes structuring junior clinics, developing summer camp programs, and leading specialized adult clinics such as cardio tennis and strategy sessions for league players. Off the court, Danny prioritizes time with his wife and daughters, balancing his professional career with family life.

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.