Sean grew up playing many different sports but committed to tennis at age 12 and hasn’t looked back, training year-round on the sport ever since. At 16 Sean trained in Spain and came back to Chantilly HS to be the #1 player and team captain of the varsity tennis team, leading the team to win the Virginia 6A State Title. After graduating high school, returned to Spain for more training and went on to play Futures tennis tournaments in Indonesia, Japan, and Germany.

          Sean loves to coach tennis as much as he loves to play and began coaching at age 15 in clubs, programs, and academies in and out of this area. Sean is certified by PTR as a performance tennis trainer, and teaches students, both adult and junior, that include collegiate, high school, and mid-atlantic tennis players. He has coached locally at Luis Rosado Academy, Fairfax Racquet Club, River Creek Country Club, Chesterbrook Swim and Tennis Club, Courtplay Athletics, RJTennis Boot Camp, and A+ Tennis Academy. Abroad, he coached at Academia TennisComp in Spain, and TennisSchwendi Academy in Germany. Sean uses his knowledge and experience from training and playing abroad when training his students. He trains players using a European style training model because he has found that this style maximizes the potential of the player. Sean believes that every player can take their game to the next level, and gives them the tools and knowledge they need to achieve this goal.


Head Coach


Phillipe Oliveros

Junior and Adult Tennis Coach 

Coach Phillipe Oliveros grew up in Centreville, VA. As an advanced junior tennis player, Phillipe competed locally, statewide, and region-wide, as well as starting all four years of high school for the Centreville High School Varsity Tennis Team. Phillipe began his coaching career at age 15 in Centreville, spending many seasons coaching right here in at the Little Rocky Run HOA. In 2018, Phillipe began coaching with TennisDNA, where he developed the Off-Court Training system used in the Junior Performance Tennis program at McLean Racquet and Health Club. Coaching both on and off the court, Phillipe focuses on allowing junior players to progress rapidly from a beginner to a competition level. Since Phillipe began with TennisDNA, he has aided in the progression of over 60 juniors on their pathways from beginner to competition play, and brings an expertise in junior development that is unmatched in the Centreville area. Phillipe has returned to Little Rocky Run to be head coach and bring his knowledge and expertise on player development to the children of the community.  

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John Nothaft

Junior and Adult Tennis Coach 

John has coached at Vienna Woods Swim and Tennis Club, Fairfax Racquet Club, and McLean Racquet & Health Club. John has been a USPTA-certified professional since 2017. 

Growing up locally as a junior tennis player, John trained primarily at Four Star Tennis Academy and JTCC at College Park, MD. John played varsity tennis at James Madison HS in Fairfax County. John received his Bachelor's of Music from Indiana University and his Master's of Music from Eastman School of Music. He currently serves as Director of Music at Lewinsville Presbyterian Church in McLean, VA, where he also works with kids in choir singing.  

Be it teaching music or tennis, John takes an evidence-based approach to coaching. John employs techniques that are proven by research, which he believes is the most effective way for students to achieve results and see their hard work pay off.  In addition to this, John always makes sure that his students are engaged by making all learning exercises into fun activities and competitions.  


Josh Melnyk

Junior and Adult Tennis Coach 

Josh Melnyk is currently a junior at Princeton University and is the top ranked player on their travel club tennis team. In high school, he led his team to their first ever state championship alongside Sean Moran and was ranked in the top 30 in the Mid-Atlantic as a junior. In addition to playing, Josh has had several years of experience coaching. When he was 15, he began coaching competitive juniors at many different clubs which include Fairfax Racquet Club, Four Seasons, Elite Tennis, and A+ Tennis. He did this for 3 years and then began coaching both adults and juniors through RJ Tennis at various locations in Northern Virginia which include Burke Racquet Club and Lansdowne Resort. Beginning last year, he has continued his coaching career working alongside his old teammate Sean Moran at McLean Racquet and Health Club, resulting in a total of 6 years as a tennis coach. 

As a tennis coach, Josh feels that technique is of the utmost importance. Especially with beginner players, Josh works tirelessly to hammer in the proper form so that his students have the proper foundation to excel in the sport.  

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Conor Moran 

Junior and Adult Tennis Coach 

Growing up in Centreville, VA and training locally, Conor had an accomplished and colorful junior tennis career. After his junior years, Conor moved on to secure a starting spot on the George Mason University Men’s Tennis Team, where he played for three years. After he graduated from GMU, Conor spent some time on tour, winning a wildcard into the Citi open doubles qualifying tournament, where he was also a hitting partner for Pablo Cuevas. Throughout his experiences of training both domestically and abroad, Conor has experienced nearly every style of training and playing.  

Conor is also an extremely accomplished academic. In high school, he placed fourth at the Intel International Science and Engineering Fair. Conor moved on from high school to receive a full academic scholarship to George Mason University, where he also became a published author. Conor later received a second full academic scholarship to the University of Miami School of Medicine where he is currently completing the MD/PhD program.  

As a coach, Conor strives to show his students that they can reach far beyond their perceived limits. Conor believes that the only thing stopping anyone from reaching great heights is themself. He tries to show his students that in both tennis and life, all it takes is hard work, passion, and dedication to accomplish their goals.  

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Miguel Lopez

Junior and Adult Tennis Coach 

A native of San Salvador, El Salvador, Miguel competed as a junior in club, national, and international tournaments. Following his junior tennis career, Miguel went on to play college tennis for Mercyhurst University from 2013-2017, while pursuing a double major in Sports Management and Business Marketing. As a collegiate player, Miguel and the Mercyhurst University Men's Tennis team went all the way to the NCAA Atlantic Regional Final in both 2015 and 2016, as well as the NCAA Sweet 16 in Surprise, AZ. In 2017, Miguel and the rest of the team won the PSAC Conference title for the first in the school's history and went to the NCAA Regional Final for the third time.   

After graduating from Mercyhurst University, Miguel received a PTR Certification and began his coaching career. When coaching, Miguel draws upon his prior training experience as a junior in El Salvador to bring what he sees as the most effective training style to his players. Miguel feels that it is important for players to fully master each stage of development in order to have a well-rounded game. When working with performance players, Miguel stresses the importance of competition readiness and match toughness, as compliments to fundamentally important skills such as strokes and movement 


Tom Nguyen 

Junior and Adult Tennis Coach 

Tom loves to coach tennis as much as he loves to play. His energy and passion for tennis have influenced many junior and adult players. He is certified by PTR as 10 & Under and performance instructor. Tom is involved in coaching juniors at his community as a volunteer coach, where works to instill a passion for tennis in kids. He has been intensely involved with RJ Tennis Boot Camp for the past 3 years, where he helps many players reach their maximum potential. His uses his incredible energy, passion and intensity when coaching to help his players learn to play fearlessly, while improving their fitness, speed and mental toughness. Tom believes in everyone’s ability to take their game to the next level and go beyond. He uses his knowledge, experience, and technique to help his students realize their full potential and accomplish their personal goals as well as their tennis-related goals.  

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Danez Medina 

Junior Tennis Coach 

After spending his childhood playing Tennis at Sleepy Hollow Recreation Association, Danez decided to take my Tennis to the next level when he was 14. He was attracted to Tennis for the mental and physical aspects that Tennis begs of an athlete. Excelling quickly, Danez played varsity tennis for all 4 years of high school. During his high school years, he utilized the online class program, giving him the chance to travel the world and compete in international junior Tennis tournaments in a number of different countries. Danez also spent time at the Guizar tennis academy where he saw a rapid improvement in every aspect of his game. Danez is currently playing division II Tennis at Midway University and is studying Biomedical Engineering.  

When coaching, Danez draws upon his personal experience of playing Tennis as a junior to offer his students rapid development. Danez began his competitive Tennis career very late compared to other players of comparable level, and because of this, Danez had to work twice as hard and use training techniques that offered rapid improvement. Danez coaches his students with the same techniques and intensity that he was coached with in the hopes that his students will see the same improvement and build the same love of the game as he has.  

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Will Pak

Junior Tennis Coach 

Will has played Tennis since the age of 8. He is currently the captain and #1 player for the Chantilly HS varsity tennis team. Will and the CHS team, have won back to back Virginia Class 6A State Titles. In June 2019, Will took a triple-crown at the VA 6A state championships, winning the singles, doubles, and team competitions for Chantilly High School. Will competes at the national level and has been ranked as high as top 50 in the country. Next school year, Will is continuing his Tennis career at the US Naval Academy. As a coach, Will I enjoys sharing his extensive knowledge and passion about the game with the community and anyone who is interested in the sport.Will takes a no-excuses approach to coaching and feels that it is extremely important for tennis players be responsible both on and off the tennis court.