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  • *Under 18 must be accompanied by parent or legal guardian.

  • *Under 18 must be accompanied by parent or legal guardian.


900 S MAIN SUITE 340
Keller, Texas 76248

About the team

  • 9Round trainer
    Yvonne "Cherry Bomb" Riddle
    As Owner/Lead trainer of 9round/Keller Yvonne "Cherry Bomb" Riddle is ready to get this party started! Yvonne is a Neo Natal Nurse Practitioner who understands the importance of a healthy lifestyle . Being a fitness enthusiast her whole life, and always looking for ways to challenge herself physically Yvonne decided to try adding boxing style workouts to her regime and immediately fell in love with the results it provided. After discovering 9round she knew this was the place for her, she is a certified 9round trainer, and looks forward to pushing our members to new heights in their fitness journey!
  • 9Round trainer
    James "Silverback" Riddle
    As owner/ operator of 9round /Keller James "Silverback" Riddle is very excited to bring a 9round center to the city of Keller. After spending 30 years in a newspaper pressroom, James was looking for a new venture to get excited about. With some help and inspiration he found out about this fun and challenging new workout system that rekindled his love of martial arts and boxing, two passions of his youth. 9round is exploding all through the United States with its new twist on old school proven exercises, as a certified 9round trainer James looks forward to working with our members to help them reach their fitness goals.
  • 9Round trainer
    Cordell "Phantom" Winrow
    Energetic, passionate, and knowledgeable are words that characterize Cordell. He graduated college in 2008 with his degree in Kinesiology with an emphasis in Health Fitness. He currently serves as a trainer and coach that specializes in movement analysis and modification. He is a great communicator, being able to break concepts down in a way that allows those he works with to excel. If you are looking to break past a plateau speak with this young man. He has many ingenious ways to help you over come those sticking points to reach your personal goals.
  • 9Round trainer
    Christina "TNT" Henninger
    Christina brings the energy to 9round Keller! As member her positivity and encouraging nature to everyone around her made her an obvious choice for a 9round Keller. We are excited and proud to have her as a member of our team.
  • 9Round trainer
    Brooke "Taylormade" Taylor
    Brooke an ex member of 9round Keller is a certified trainer.
  • 9Round trainer
    Christine "Crusher" Forstner
    Our newest trainer Christina, is a certified trainer. With knowledge, skill and motivation skills. We are excited to have her on the team!
  • 9Round trainer
    Julie "White Knight" Peterson
    Julie was a member of 9round, know she joins our training team. Julie loves to mix it up, her passions include learning different types of fighting styles.