Photo of Mike Thoeresz
Mike Thoeresz
RCI Director of Tennis

Mike Thoeresz has been in the tennis industry in some capacity his entire life. He was a top nationally ranked junior before he went on to receive an Athletic Scholarship to Portland State University. He then transferred to the University of Redlands where he was a Three time All-American. After graduating Mike spent three years coaching at the college level before he began running adult clinics and the junior tennis program/academy at the Palisades Tennis Center. Aside from coaching beginner adults through former top collegiate athletes he taught beginner juniors through blue chip top nationally ranked players. Eventually he became the General Manager and Director of Tennis of three facilities in West LA. Since coming to RCI in January of 2014 Mike has started adult LiveDrill clinics and taken over the RCI Beginner/Intermediate Jr. Tennis Program. He is also very involved in programming and tournaments at the club. Mike’s tennis teaching philosophy is high energy with a focus on the fundamentals: stroke production, footwork, balance, developing mental toughness and creating a fun and positive atmosphere!! Please contact him if you have any questions about tennis at RCI!


Photo of Jason Strother
Jason Strother
Senior Head Tennis Professional

(949) 861-0889 (cell)

Jason has been at the Racquet Club of Irvine for the past 27 years and has been the Head of Tennis Professional for 25 years.  He is also a USPTA certified professional and a member of the Head Advisory staff.  Prior to coming to the Racquet Club of Irvine he played for UC Riverside where he was nationally ranked in singles and doubles for 3 years.  Jason has worked with some of the top internationally ranked wheelchair tennis players.  Over the years, he has also worked with new players of all ages, 3 ½ to 85, on basic stroke and footwork fundamentals.  He keeps his lessons fun, informative, and teaches the concept of “keep it simple”.  Jason sees that many players make the game much more complex and harder than it needs to be.  With more competitive players, he excels in doubles strategy; as well as advanced footwork and stroke technique.  Jason teaches a classic stroke with the goal of longevity in the sport for years to come with exuberance and enthusiasm both on and off the court.  Jason teaches privates, semi-privates, and group lessons.  His students find their clinics very productive because Jason keeps his clinics at a 4 to 1 student/ration.  Jason is married to RCI personal trainer Nicola Strother, who is also a Pat Etcheberry Certified speed, quickness, and agility coach.

Photo of Allan Iverson
Allan Iverson
Tennis Pro

(949) 466-4954 (cell)

I love tennis.  Starting from the first time striking a tennis ball until now, it feels great to hit the tennis ball.  This lead to a passion for all things tennis, from teaching to tennis equipment, I enjoy it all.  I played number one at my high school and all 4 years at Christ College of Irvine.  For the past 25 years I have taught tennis.  I have had a USPTA P-1 for over 20 years, named “pro of my region” in 2011.  I am have had a keen interest in tennis equipment and have been involved in running tennis pro shops for over 20 years.  This experience helped me to attain a job with Babolat as a territory rep in Southern California. My availability is Friday nights and weekends and I am interested in someone who wants to improve and have a greater enjoyment of tennis.

Photo of Donna Ewing
Donna Ewing
Tennis Pro

(949) 285-4357

Donna Ewing has been a teaching professional at the Racquet Club of Irvine since 1999.  She played tennis for Cal Poly Pomona during the 1990 and 1991 tennis season. Donna is a two-time All American, and she held a #1 national ranking in doubles for both years.  In 1990, she was a doubles semi-finalist in the NCAA Division 2 National Championships, and a finalist in the 1991 National Championships.  Donna believes that tennis is a great sport for everyone, and she strives to make the learning process fun. She also teaches group classes, private and semi-private lessons for both adults and children.

Mike Longanecker
Tennis Pro

Mike is a USPTA Professional and rings over 12 years of tennis teaching experience to the Racquet Club of Irvine. He graduated from University of La Verne where he attained a degree in marketing. Mike played #1 for the Leopards and was an Academic All-American. He was ranked as high as #16 in the National Men’s Open rankings and continues to compete to this day. His specialty is teaching high performance strokes, body mechanics, and correcting strokes that may be causing injury. His philosophy is to have a high energy and positive environment to build a game that lasts a lifetime.


Photo of Nicolas Giachino
Nicolas Giachino
Tennis Professional

Nicolas Giachino was born in France where he was a nationally ranked junior. Nico has tremendous energy, enthusiasm, and decades of tennis coaching experience. He comes from a tennis family: both his father and his brother are tennis coaches. He USPTA, French Tennis Professional (DEJEPS), and mental (NPL) certified. He loves teaching players of all levels: beginners through advanced players. He is a USTA 5.0 player and speaks French, English, and Spanish.

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