Our Personal Trainer


My name is Endre Witthoeft, personal trainer of 31 years. Sports and fitness have always been a part of my life. In fact, my mom had me swimming at 6 months old. As an all-around athlete — whether playing USTA tennis tournaments in Texas, swimming AAU meets, or training for the Alaskan Marathon — fitness training is a key ingredient to my way of life. Training is a journey in which we can continually grow. It strengthens character: fosters discipline, grit, mental resiliency, and a solid work ethic. In short, my fitness journey cultivates not only my character, strengthens my body, mind, and, at times tests the core of being, my spirit.

I am grateful for my fitness, health, and wellness journey and want to share my knowledge and experience, as I walk, alongside, and encourage you on your journey.

The first step is to meet you at your fitness level, without judgement, and tailor your training based on your goals. Personalized fitness – I believe each client is at a different fitness level, unique personality, and has meaningful goals. I customize your training for who you are and want to be.

So, take the first step today – schedule a FREE fitness session – and embark upon a transformational fitness journey! I look forward to walking the walk of fitness, health & wellness with you.

To your fitness & health!


Diverse Training – dumbbells, TRX, kettlebell, plyometrics, Vipr, tubing, body weight, med-balls… the body needs to be trained with a plethora of training modalities to maintain joint stability, prevent muscle plateauing & burnout.

Training expertise – I specialize in 3 main areas of training:

  1. Sports specific training – tennis, marathons, and triathlons being the top 3.
  2. Weight loss – the focus is on speeding the metabolism through HIIT circuits of strength & cardio and lifestyle & behavior modification.
  3. Total health & wellness – a balanced fitness program of strength, cardio, Tia-Chi & yoga, whole-food nutrition, and meditation/pr.

Tennis Specific Training

Tennis is identified as a game of continual emergencies because each shot encountered in a point is different. Every ball coming over the net, clipping the net, or bobbling over challenges you to be ready for varying velocity, spin, height & depth, and placement.

It is true to say that tennis is a highly complex sport. The average point on a hard court is four shots, and on a clay court, it’s five. Yet, the average match lasts two hours. Within those four or five shots, you have to jump up and into the court to hit the serve, split-step, jump again before the second shot, sprint and lunge for the drop shot, backpedal for the lob, and zip back up to the net to retrieve the angle drop volley. The question is, how can you train your body to perform explosive moves, quick directional changes, maintain balance and coordination while hitting with strong fluid muscles throughout a two-hour singles or doubles match? Moreover, there are no coaches on your level giving you advice during your match, and if you’re playing singles, it’s just you, and no one else to help you strategize.

So, how can you train your body and mind to meet the physical and mental demands of this multifaceted sport? As a trainer for over 30 years who has trained athletes in all sports, Tennis is the most challenging. It is a massive training endeavor. Let M.A.S.S.E.F. be your guidepost:

M – stands for Mental toughness. In tennis, mastering the mind means mastering the game. Calming the mind, calming the body, and mastering the moment is essential. Playing present Tennis, moment by moment, and letting go of past points and future “what-ifs” will enable you to reach your fullest potential. Positive visualization of your match game plan and daily meditation practice can mentally strengthen your ability to stay in the “Zone” (a term used to describe athletes playing at their highest level, moment to moment).

A – Agility. This means the ability to move quickly with balance and coordination. On-court training drills, two times a week for 30 minutes, can help improve agility.

S – Strength. Strength training the body for fluid strong muscles specific to Tennis (Posterior chain in the legs and rotational strength, for example) is essential. Scheduling strength training 2-3 times a week for an hour can be helpful.

S – Speed. HIIT (High-Intensity Interval Training), twice a week for 30 minutes, is essential for speed training.

E – Endurance. Interval training for 45 minutes, once a week, can help increase endurance.

F – Flexibility. 15 minutes of facia training daily (fluid body movements in opposite directions), 10 minutes of yoga & static stretching daily, and five minutes of foam rolling and fascia release daily can help increase flexibility.

M.A.S.S.E.F. is a comprehensive training program that addresses the complexities of tennis, including mental toughness, agility, strength, speed, endurance, and flexibility. Take it one letter at a time, and you will play at your highest level. For a FREE fitness consultation to begin your training, call today. To your fitness & health! Endré (DVTA Personal Trainer).

This information is believed to be accurate and correct; however, it is subject to change without notice. Contents, course names and descriptions are copyright Tennis Academy.