• * Under 18 must be accompanied by parent or legal guardian. First-time visitors and local residents only. Terms and conditions may vary and certain restrictions apply. No cash value; value may vary by market. Cannot be combined with any other offers or discounts. Valid at participating locations only. Each franchise location is independently owned and operated.
  • * Under 18 must be accompanied by parent or legal guardian.


900 S Main Street Suite 340
Keller, Texas 76248

About the team

  • Yvonne <span class="nick-name">"Cherry Bomb"</span> Riddle
    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!
  • James <span class="nick-name">"Silverback"</span> Riddle
    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.
  • Christina  <span class="nick-name">"TNT"</span> Henninger
    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.
  • Christine <span class="nick-name">"Crusher"</span> Forstner
    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!
  • Julie <span class="nick-name">"Shadowfire"</span> Peterson
    Julie "Shadowfire" 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.
  • Christina <span class="nick-name">"DE LION"</span> Deleon
    Christina "DE LION" Deleon
    Christina aka Delion started 9Round as a loyal member since 2016 posting sweaty selfies to hold herself accountable to being committed in her fit life and calling us her "second home". Delion loves working with people and pushing them further than they think they can go. The 30 minute workout and no class times fit everyone's hectic schedule perfectly and this is why Delion knows that others in this fitness environment can help take their fitness goals to the next level! Motivation is what gets you started, Habit is what keeps you going!