Meet the TennisPower Coaching Team
and our Conditioning & Fitness Coaches

Peninsula Racquet Club has a professional staff that is second to none in the South Bay.  We look forward to teaching and coaching you and your family.  Contact the Club Front Desk to schedule lessons or workouts.

OR Download the FREE PRC Mobile App and book lessons, workouts, and events right from your phone.

Oliver Messerli
Oliver MesserliDirector of Tennis
OLIVER MESSERLI, a native of South Africa, has been in the International Professional Tennis Industry for 22 years. He is the Director of Tennis at Peninsula Racquet Club in Palos Verdes and has been developing tennis players in the South Bay since 2001.

Oliver’s professional experience extends from having competed on the ATP Tour himself to having coached, trained and traveled with many players on the ATP and WTA Tour.

During his time on the WTA Tour, Oliver helped his clients win a total of 4 Grand Slam Titles, as well as 15 Tier 1 and 2 singles and doubles titles.

While under his watchful eye, Lisa Raymond and Rene Stubbs ended 2000 as the #1 Doubles Team in the World. Some of Oliver’s other clients have been Mary Pierce, Nicole Pratt, Erica Delone and currently Jason Jung. He has also been working with PRC’s Ena Shibahara from age 9 onwards.

Oliver has served as the Head Coach for the CTC South Bay Team for the past two years. Most recently, he was the recipient of the USPTA Coach of the Year (Region 4) for 2016. He was also received the Arthur Ashe Collegiate Sportsmanship of the Year Award for 1997.

Through his experience as the #1 ranked Junior in South Africa, as a NCAA Division 1 player and a player and having worked with the best doubles players in the world, Oliver brings his personal experience to guide all players, from USTA Juniors to Marine League to the Pro Level, to benefit and achieve ultimate success.

Oliver and his TennisPower Team impact and guide many of the top US juniors to help them achieve their goals and prepare them for the WTA and ATP Tour or NCAA Division 1 Tennis.

Christopher Dalton
Christopher DaltonTennis Professional
CHRISTOPHER DALTON, a native of Rancho Palos Verdes and has been a family member at Peninsula Racquet Club since he was 8 years old. Chris has 5 years of coaching experience under Oliver Messerli and the TENNISPOWER TEAM.
Chris played three years of NCAA Division 1 collegiate tennis at Gonzaga University in Spokane, Washington, and one year of NCAA Division 3 collegiate tennis at Pacific University in Forest Grove, Oregon.

Chris graduated with honors from Pacific University in May 2016 with an undergraduate degree in Business Administration with a concentration in Finance.

At Pacific University, Chris helped the tennis program achieve its highest ever National Ranking of #29 in the country, #6 in the West Region, and he got to the finals of the Northwest Conference Tournament in 2016.

In May of his senior season, Chris received Student Athlete of the Week recognition for the Northwest Conference.

Chris’ experiences as a high school and collegiate player hav prepared him to be a coach focused on helping guide young tennis players in the TennisPower Program to achieve their goals of the ATP/WTA TOUR, NCAA Division 1, Division 2, Division 3, and high school tennis. Chris is also well prepared to help guide the Marine League and Men’s League to become the top teams in the South Bay.

At Peninsula Racquet Club, Chris currently coaches the Pee-Wee Programs, Junior Programs, Team Tennis, Marine League, Men’s League, Private Lessons, Hitting Sessions, Terranea Resort Clients, and is an Assistant Coach for the CTC South Bay Team.

Chris has great passion and energy for working with new clients and makes the environment on court a fun and memorable experience. He teaches students not only perfect technique but also point play strategy, and he helps every player maximize their potential. Chris helps players recognize and improve on their weaknesses so they become confident hitters at any spot on the court.

Jay Leavitt
Jay LeavittTennis Professional
JAY LEAVITT, a native of Cleveland, Ohio, started playing tennis when he was four years old and quickly became one of the top ranked juniors in the Midwest.
After graduating high school with top honors, Jay continued his tennis career at Ohio State University and Cleveland State University.
While at Ohio State, his team won a Big 10 title and ranked second in the nation. At Cleveland State, Jay’s team won the Horizon Conference.

After finishing college, Jay moved to North Carolina and ran a junior academy for six years. He then moved to Los Angeles and ran RAMP Tennis Academy at the Stub Hub center in Carson for two years. During this time, he coached a junior who was #1 in the nation and top 200 in the world ATP.

Jay has ten years of coaching experience working with some of the best juniors in the nation and traveling with ATP touring pros. He is a PTR pro, a USPTA pro, and a certified USTA high-performance coach. With a love for the game and for coaching juniors, Jay hopes to share his passion with others for years to come.

Andrew Sarawasi
Andrew SarawasiTennis Professional
ANDREW SARAWASI grew up in Carson and began playing tennis at the age of 6. He trained with other top ranked junior athletes and competed in tournaments throughout his junior career. He adopted a disciplined and rigorous work ethic early on by training every day after school and devoting weekends to matches and tournaments.
Andrew played #2 singles and #1 doubles throughout his four years at Carson High School with teammate JR Sarmiento. In his junior year, he and his partner won the doubles City Individual Playoffs. After high school, Andrew attended El Camino College and joined the tennis team as the #1 singles and doubles player for two years. He proved himself as a doubles specialist after qualifying twice for the doubles state championships for community colleges.

Since his youth, Andrew has always shared his tennis techniques and strategies with friends. His development into a strong tennis player thus contributed to his natural development into a tennis coach. Since then, Andrew has trained adults and aspiring juniors. He also worked with students as assistant coach at the California Academy of Math and Science.

After graduating from El Camino, Andrew continued his education at California State University, Long Beach as a kinesiology major with a focus on fitness. There, he studied the physical and mental aspects of well-rounded athletes and tennis players. Andrew discovered that the skills required as a tennis player can also be used to improve other aspects on one’s life. Andrew hopes to help others become stronger tennis payers so that they can live improved lives.A100377

JR Sarmiento
JR SarmientoTennis Professional
JR SARMIENTO, born and raised in Carson, CA, has always been an avid tennis player.

He began playing tennis at the early age of 6 surrounded by a community of tennis enthusiasts. To JR, tennis is family.

JR has worked with many world-renown coaches; his skill-set encompasses an extensive array of technical, physical, mental, and emotional mastery.

As a junior tennis player, JR achieved a singles ranking of #1 in SoCal Boy’s 10s, #1 in National Boy’s 12’s and 14s, and #22 in SoCal Boy’s 18s.

In his sophomore year of high school, JR won first place in the LA CIF Single’s Tournament. In addition, he won the Marine League Conference Title all four years.

As a 5-star freshman recruit to UCLA, JR graduated with a Bachelor’s Degree in Political Science. Post-college, JR volunteered as an Assistant Head Coach at Cal State University, Fullerton. helped the university achieve their best all-time school record, 19-4.

At 26 years old, JR became Head Coach of Whitter College, a NCAA Division-III private liberal arts institution. It was there that JR truly refined his coaching. He emphasized the program’s direction towards personal development both on and off the court by encouraging players to cultivate an elite “winner’s mentality”.

JR currently works on-site with Oliver Messerli’s TennisPower Junior Development Program. With his tennis experience, he supports TennisPower’s development into a world-renown elite junior tennis program.

JR’s mission is to build a community of individuals who strive to be their best. He embodies the pursuit of success, placing a strong value on integrity, respect, consideration, cooperation, and prudence. JR believes that communities are reflective of their leadership, and he does his best to lead by example.

Gianpaolo Von Nacher
Gianpaolo Von NacherTennis Professional
GIANPAOLO VON NACHER began playing tennis at the age of 6. As a junior, he was ranked top 10 in both Mexico and Venezuela. After his achievements as a junior, Gianpaolo played Pro-Am, Satellites, and Challengers before coming to the United States on a tennis scholarship.
Gianpaolo earned a Mechanical Engineering degree from the University of Texas. He was awarded All-American, Athlete-Student of the Year, and he was on the Dean’s List. During his years as an engineer, Gianpaolo earned an MBA and a Master’s in Lean Six-Sigma. He is continuing his education in Finances and Economics, and he works full-time as an advocate, coach, and consultant.

Throughout the last 25+ years, Gianpaolo coached at several different venues such as John Newcombe Tennis Academy, Flynt Canyon Tennis Club, Campestre Country Club, as well as summer camps and PE classes.
With his experience, Gianpaolo enjoys coaching beginners, teaching them all the necessary skills: technique, consistency, placement, and power. Elite players benefit from his coaching on fitness, mental strength, game strategy, and continuous improvement.

Gianpaolos’ involvement with the PRC community includes the Junior Program, Marine League, private lessons, and open workouts.

He views tennis as a hobby and a sport, but most importantly as a discipline. Tennis has opened up so many doors that Gianpaolo wishes to share with the PRC community.

Danielle Langolf
Danielle LangolfFitness & Conditioning Coach
Danielle Langolf, a native of Manhattan Beach, and has been in the fitness industry for 9 years. From the age 6 to 18 she played soccer and softball; after finishing with sports though she was at a loss on how to continue to stay active. That was until she decided to get her own personal trainer, which brought her to learn new ways to stay healthy and fit.
She adjusted her fitness and nutritional habits through making incremental changes to her daily routine to develop an achievable healthy lifestyle. Fast forward a decade later and working for fitness facilities like 24 Hour Fitness, South Bay Aquatics, and Bionic Body, she has continued pursuing her passions in fitness.

Danielle’s training style is: first establish a solid base with every client with regards to ankle, hip, and shoulder mobility while developing knee, core, and elbow stability. Once the client has appropriate range of motions and stabilities in all planes of motion, she then builds up their athletic abilities through functional sports performance based workouts. Her fitness style, while being beneficial for most sports, is particularly conducive for tennis performance due to the sport’s repetitive fast twitch nature which injuries frequent; her style works very well in helping with injury prevention and rehabilitation.

Today her programs incorporate similar philosophies that she practiced with her own trainer: she incrementally changes and challenges her clients’ workouts by progressing planned fitness programs at a rate achievable for each individual. While on the nutritional side she helps her clients develop healthier habits (not crash diets) by changing one agreed upon habit at a time; which over a short period of time adds up to a much healthier lifestyle! Her personal philosophy is the best years aren’t behind you, but ahead of you!

Cyrus Ntakirutinka
Cyrus NtakirutinkaFitness & Conditioning Coach
Cyrus Ntakirutinka, a native of Rwanda, is a strength and conditioning coach in the South bay. Before joining the Tennis Power Team, Cyrus was training Youth Athletes both in Los Angeles and in Miami at the high performance Bommarito Performance Systems. While in college, Cyrus studied journalism and was the beat reporter for both women’s and men’s tennis teams.
His passion for sports led him to pursue a Masters degree in Sport Management at Barry University. While in school, Cyrus began to work at Bommarito Performance Systems with helping football players in the NFL prepare for training camp and college athletes prepare for the combine. At the facility, Cyrus gained experience coaching youth athletes in various sports including football, soccer, basketball, volleyball and tennis.

Since moving to Los Angeles, Cyrus has worked with some MLB prospects represented by MVP Sports Agency. He is not only limited to youth athletes, he also works with the general individual looking to be healthier, become strong and avoid injuries.

Cyrus is motivated by his love for sports and experience he has gained training professional athletes and is driven to share that knowledge with his clients. Cyrus currently trains the juniors in speed, agility, flexibility and injury prevention techniques.

Amanda DiBernardo
Amanda DiBernardoClub Office Manager
Jerry Kabiling
Jerry KabilingSite Maintenance
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