Demetrius Mahone


Demetrius taught beginner thru advanced tumbling at Extreme Gymnastics USA for 2 1/2 years. He had to step down as a tumbling coach due to an injury, but has now fully recovered and is ready to teach once again.


Demetrius graduated from Wayne State University with a BA in Media and theater. He is an inspiring actor and owner of a “Father and Son” based videography business called Linnhurst Street Films. He is also an Associate Banker at Chase Bank. 

Demetrius currently teaches TGGA's Xcel Competitive Team, Boys Classes, and Special Needs classes. He assists in teaching TGGA's Competitive Team Levels 1 - 4. 


Fun Fact:

Demetrius has a history of teaching dance in the form of hip hop and also Ballroom and Line Dancing. Acted in many plays and short films.


Private Lessons are available. For more information feel free to ask! ☺


Tanya Aleksyeyev


Tanya Aleksyeyev is originally from Vitebsk, Belarus and has 12 years of trampoline gymnastics experience at Vitebsk Trampoline School of Olympic Reserve. Tanya competed for the Belarus Junior National Trampoline Championships in individual synchronized and team competitions.

Trampoline is a great training tool to develop acrobatic skills. Trampoline is also sheer fun. Tanya works with kids of all ages to achieve their dreams. She currently teaches tumbling and recreational gymnastics classes and assists in teaching Competitive Team Gymnastics (Levels 1 - 4) at TGGA.

Tanya graduated from Wayne State University with a Master's Degree in Taxation.

Fun Fact:

Trampoline is a competitive Olympic sport in which athletes perform on a trampoline. Trampoline became an Olympic sport in 2000.

Vitebsk Trampoline School is a home school for 2016 Rio Trampoline Olympic Champion Uladzislau "Vlad" Hancharou.

Jennifer Zibbell


Coach Jenn has over 10 years’ experience working with children and youth, including 5 years coaching experience. She has a passion for coaching and loves the discipline and conditioning obtained from being active in any sport.


Her favorite thing about coaching youth sports is witnessing the technical and mental growth and maturity that comes from hard work and dedication. While she loves coaching all events, her favorite are vault and bars.

Jenn has a BBA in Finance and is working towards a MA in Theological Studies with a specialization in Creation Care and Christian History and Theology with the intention of obtaining her PhD in Theology and becoming a seminary professor. 

Private Lessons Available! Please call for more information.