Meet Our Coaches
Get to know the passionate leaders behind our coaching program and their inspiring journeys.
Coach Sydney Senter
Owner | Program Director | Head Coach
Sydney Senter is a retired elite trampoline gymnast with over a decade of competitive experience at the highest levels of the sport. She trained from 2008–2021, representing both Hawaiʻi and the United States on national and international stages.
Her training career included time at/with Hawaii Academy (2008–2021), Merino Trampoline Gymnastics Academy (2019–2021), and Carolina Elite (2021). As both a Trampoline and Double Mini Trampoline gymnast, she competed as a 7-year member of the U.S. Trampoline National Team and the U.S. Double Mini National Team.
She earned her Bachelor of Arts in Psychology with a minor in Communicology from the University of Hawaiʻi at Mānoa, an academic foundation that now informs her coaching philosophy. Her background in psychology and communication strengthens her focus on mental resilience, confidence-building, and intentional athlete development. She also currently serves on the Board of Directors for Beyond the Game Alliance as a Student Director and Mentor, supporting athletes in leadership and personal growth beyond competition.
Today, she brings that elite-level experience into her role as Head Coach and Program Director of Hawaii Trampoline Senter, developing the next generation of competitive athletes with intention, discipline, compassion, and purpose.
Career Highlights
2014 Double Mini World Age Group Champion
2018 Pacific Rim Trampoline Champion
2019 Women’s Double Mini Team World Champion
4× U.S. National Champion
4× World Age Group Championship Medalist
7x U.S. Trampoline National Team Member
7x U.S. Double Mini National Team Member
Coach Annabelle Overstreet
Assistant Team and Pre-Team Coach
Coach Annabelle is 23 years old, born and raised in Claremore, Oklahoma. She moved to Hawaii in 2018 and started working for Hawaii Academy. She proudly serves in the USAF, specifically in the Air National Guard, working full time in Cyber/IT. Coach Annabelle competed in artistic gymnastics for 15 years along with high school gymnastics and springboard diving. She brings a warm, positive energy to the gym and is deeply passionate about both the sport and the athletes she works with. Her encouraging and steady presence provides the perfect balance to our program. This past season marked her first experience with competitive T&T, and she quickly proved herself to be an invaluable part of the team’s success.
Why I Built Hawaii Trampoline Senter
A letter from our owner and head coach...
Aloha!
Welcome! Thank you for taking the time to visit our page. I am so happy that you are here. My name is Coach Sydney, and I am the owner of Hawaii Trampoline Senter.
I started Hawaii Trampoline Senter because the sport of Trampoline & Tumbling shaped who I am. It taught me discipline, resilience, confidence, humility, responsibility, and compassion. I felt called to give back to the sport by providing that same opportunity to young athletes in Hawaiʻi—a space where they can grow not only physically, but mentally, socially, spiritually, and emotionally through high-performing athletics.
As an elite athlete, I experienced firsthand what disciplined training, strong mentorship, and high standards can create, not only in results, but in commitment and character. I wanted to build a program that bridges foundational experience into elite-level development, giving athletes on our island the opportunity to pursue T&T at the highest levels with the unwavering support of their HTS ʻohana behind them.
Hawaii Trampoline Senter is built on standards. On accountability. On intentional progression. And on aloha. My goal is not only to produce champions, but to help shape resilient, courageous, and compassionate young athletes who carry their strength, integrity, and flying mentality with them both on and off the trampoline.
Mahalo for your support. I am excited to see our HTS community continue to grow, expand, and inspire.
Coach Sydney
