Why did you start BJJ?
My parents both did Jiu Jitsu when they were kids. Thankfully, my dad chose to restart his journey when they decided to have me train. Also, Sensei needed a partner for his son, my best friend Ares Tuck.
Youth Grey Belt Competitor
Karter Cruz
"Karterboy"
Grey Belt
Barrigada, GuamTraining for 2 years
Karter "Karterboy" Cruz is a youth grey belt from Barrigada, Guam, training at Guam Martial Arts Academy. He started Brazilian Jiu Jitsu because his parents both trained when they were kids, and his dad restarted his own journey so they could train together.
Sensei also needed a partner for his son, Ares Tuck — Karter's best friend — so the mats became a second home. Over the last two years he has stacked up medals and keeps chasing gold alongside his teammates.
- Mariana's Open Fall 2024
- Patgon Fall 2024
- Coupa De Mariana's 2025
- Patgon Summer 2025
- Mariana's Open 2025
- Mariana's Open 2026
Athlete interview
In Karterboy’s words
What do you enjoy most about competing?
Getting the medals.
What motivates you to keep training?
My best friend Ares. We've known each other since the gym was still in the works and we always push each other to do better.
Who has influenced your BJJ journey the most?
My coaches, especially Sensei Jon and my Dad.
What does representing our competition team mean to you?
Everything. I am proud of everyone who goes out and does their best.
What does representing Guam mean to you?
I haven't done a competition off island but when I do, you will know I am from Guam and I represent GUMA all day, every day.
What are your competition goals for the next 12 months?
Get Gold Medals again and be proud of myself and my family for always supporting me.
What is your ultimate goal in BJJ?
Be a Black Belt.
Training & competition
