TNT has always been our acronym for Tumbling and Trampoline. Funny it’s like the dynamite TNT because, we actually explored new heights for Trampoline and called the floor exercise Power Tumbling. A different sport than Gymnastics or as it has come to be known today as a new division of gymnastics.
Professional Trampoline, Double-Mini Trampoline, and Power Tumbling floor are the 3 events. You compete by age and level. Girls and Boys do not Compete against each other. Trampoline You begin by teaching how to land on feet, back and belly. All beginner skills. To twisting and rotating skills. You learn the 10 contacts needed for competition. Double-mini is learning the feet, jumps, and 2-3 contacts on the trampoline with all the same amazing rotating and twisting skills. Our Floor is unique as in we go from 5-8 skills connecting with much needed power and force to remain the height needed for elite rotations and twisting. Trampoline now goes to the Olympics today since the induction in 2000.
The inventor of the Trampoline and its founders of the United States Tumbling and Trampoline association. Georgia Nissen and his coach Larry Griswold we have much to thank. They grew an invention that became and still up and coming an amazing sport to do and watch.
The USTA has been the longest and consecutively running trusted association for Trampoline/DMT, and Power Tumbling Sport for 50+ years. We’ve kept our athletes safe. Our coaches have been handed down the Trampoline coaching and skills for decades. With many athletes building their own TNT gyms supporting the USTA and its rich history of trampoline. Now today anyone can have a Trampoline in their own backyards!

Hello Everyone and Welcome to Tumbling Boulders Power Tumbling and Trampoline gym. I’m your owner and head coach Jillian Dworak. Better known to the kids as: Coach Jill. Born and Raised in a small Midwest town in Illinois. I began my tumbling and trampoline journey at the age of 4 years old with Paula’s Tumbling Tornados. Who still competes today as the YMCA Tumbling Tornados. I treat all people and kids who walk into my doors just like family. Proud to be a Single mother, Woman owned small business established in March of 2020 in Henderson, NV.
Illinois State National Champion
USTA National Champion
USTA Elite National Team Member
AAU Junior Olympic Gold Individual Trampoline AAU Gold Syncro Trampolinist. AAU Gold Double Mini Trampolinist
Travels from Hawaii at 12 to performing in the Waikiki Mall, and ironically here to Vegas when I was just 13 for National Team Trip to watch opening of Cirque. Trampoline has became more popular and in so many backyards. Let’s not forget where it came from… a man who was a gymnast who wanted to fly. You can read his book and learn the concept that came from Trapeze Trampoline within the USTA; an organization has consecutively competed trampoline based off it’s founder longer than any other organization running today. The coaches I had were part of the beginning of coaching and competing trampoline. I take that with great pride to show case my athletic history on a trampoline and the specific trampoline coaching I received. Glad to see the induction to Olympics in 2002 the year I graduated High School. I wish the Sanction would have stayed with USTA. The greatest part about going into USG as an Elite Tumbling and Trampoline athlete to compete today. That it has begun to have judges in both organizations which creates a greater level of fairness.
10 years of competition with U.S.T.A. under Hall of Fame Coach Paula Grigsby’s is something I am absolutely proud to be able to say. I’ve learned to be a better Athlete, Coach, and person because of her. She’s more than just a great coach to many. My love for this sport has made a full circle. It exudes when coaching young athletes who want to learn the art of Tumbling and Trampoline’s. Recreational or Competition, your child will learn skills when tumbling and jumping at Tumbling Boulders gym.
Coach Jill holds an Associates Degree from Illinois Central College and a Bachelors Degree from West Virginia University. Many certificates in personal training, group fitness coaching and specific trainings. Coaching and training working with babies to those in their 90’s. Starting in a classroom to now 2500sq ft. Gym. The community who has and who continually support Tumbling Boulders. I can’t do this without you, Thank You!
