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SHAPEof-U was founded by a former tennis player, Julia Siwert. Her fitness & tennis journey has started 17 years ago. She has won a few dozen medals and trophies and gained titles in all age categories. Currently, Julia is running Personal Training & Tennis Academy in London, Miami, Los Angeles, Washington DC and New York. She also shares advice on health, wealth, motivation, kindness, self-respect and nourishing your body.


Julia strongly believes that, no matter what you do and who you are, you deserve the body that will support your life goals. She is focused on a holistic approach to a healthy lifestyle. Her main mission is to help you release your maximum potential and live the life you have ever wanted.

Julai Siwert Founder SHAPEof-U.jpg

"Have you ever doubted in creating the life you have ever wanted?


When I was 6 years old my dad took me to the tennis court and there my journey has started. For the first three years I played 3-4 times a week and I had physical preparation once or twice a week. At the age of 11 I was training twice a day, almost everyday. My club was 50 mins away from my home so it was very time-consuming. I had to combine trainings, tournaments and school. I did not have time or energy to meet friends after school, going to parties or on school trips like most of my friends did. Also, my father became a type of a crazy tennis parent” - he did not miss my trainings, he got stressed before my every tournament and he talked about my tennis every moment. To cut the long story short, my life has started spinning only around tennis.


My typical schedule looked as follows:

Monday to Friday:

4:40am - wake up

6am-7am physical preparation and mindful session.

7am-9am tennis training.

10am-2:15pm school.

3:30pm-5pm tennis training

6pm-8pm school homework.

9pm - stretching, training notes and sleeping.


10am-12pm tennis training, sparring matches

1pm - return home

3pm-5pm - rewriting notes from missed hours at school

5:30 - free time but too tired to go out


Studying, stretching, sleeping.

Every few weeks:

tournaments and more missed days at school so studying during the trips.

Finally holidays:

which means making the most of this time for tennis and tournaments. 



Julia Siwert London Tennis Vibez _edited

I was working really hard and put all my heart into it. Each training done at 100% and every step forward gave me enormous satisfaction. I subordinated my life to tennis and I don’t regret it. Moreover, I am grateful that my life is full of passion and not just survival.

I pierced through the club, city, state and finally national rankings. I have won a few dozen medals and trophies and gained titles in all age categories. I also tried to prove my abilities on the international arena. Unfortunately, at the same time, my life beyond the court began to turn upside down. My life and dreams to which I then devoted began to collapse.

I started having serious family and financial problems. Things that seemed obvious, such as money for transport, food or electricity have ceased to be obvious. Naturally I also lacked money for my trainings and tournaments. My parents did everything to help me continue my tennis journey. Also my club supported me by giving me free access to the tennis courts, fitness areas, and supporting my tournaments.

Unfortunately, it was just the beginning of my life turn over. People who seemed to be our friends, who wanted to help my family turned out to be people who lived out of someone else’s misfortune and got rich by intimidating them. This led us to loosing literally everything.


My life changed dramatically. I lost everything I thought was the most important in my life. I also stopped playing tennis.

It was the hardest time of my life. To be honest, I was loosing hope for better future. Concurrently, it was the time when lessons learned from fitness and tennis allowed me overcome that run of misfortune. I knew that I needed to take care of my body to feel strong and powerful. I learned that its not supposed to be easy physically or mentally. I learned how to lose, how to accept this and appreciate this. I learned how to create my vision and control my attitude. I learned how to work hard, be patient and be grateful.


I’ve decided to fight. I’ve decided to fight to win my own future. I kept the vision of my happy and healthy life in front of my eyes all the time. I was meditating few times a day, every day. I was writing gratefulness notes every morning and evening. I was taking care of my body through exercising, walking, whatever was possible. I was nourishing my body in the best way which was possible at that time. I was smiling and treated it as mandatory. I was expressing my love and gratitude everyday. And I did it.


My life has become happier and more satisfactory. I became more powerful, happier and stronger than I had ever been before.


Now I would like to share my knowledge and experience with you. I know that you are not stuck where you are. I know that you have the power to change your life. And I know that your success is hidden in your daily routine. I strongly believe that, no matter what you do and who you are, you deserve the body that will support your life goals. With strong and healthy body, as well as with your mind focused on the present, you will release your maximum potential and live the life you have ever wanted.


My main mission is to help you achieve that. Help you release your maximum potential and motivate you. Help you feel addictively strong, powerful and attractive. Inspire you to live with passion and to discover the beauty of tennis. Help you live fully in your own skin and at the present moment."

Julia Siwert tennis_edited.jpg


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Thank you for taking the time to see how we can help you. We truly want to see you become the best version of yourself. We'd be delighted to hear from you!

  • Julia Siwert SHAPEof-U
  • Julia Siwert SHAPEof-U


London  |  Los Angeles  |  Miami  |  New York Washington DC

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