Academy profile

Ragnar Jiu Jitsu

Lutz, Florida

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Profile

About Ragnar Jiu Jitsu

At Ragnar Jiu Jitsu, we specialize in high-level Brazilian Jiu Jitsu instruction for adults, teens, and kids--focusing on no-gi techniques that are both effective and battle-tested. We are proud to operate inside Freestyle Muay Thai in Lutz, FL. with one of the first pit walls in the Tampa Bay Area!

Our head instructor, Professor James "Ragnar" Doner, is a United States Marine Corps veteran and a dedicated martial artist with over two decades of experience. Professor James earned his black belt under Professor Mike Geery, a 3rd-degree black belt under Professor Cassio Cardosi, who holds a 5th-degree black belt under the legendary Master Fabio Gurgel.

Class Hours

Tuesday: 4:30–9 PM
Wednesday: 4:30–9 PM
Thursday: 4:30–9 PM
Friday: Closed
Saturday: Closed
Sunday: Closed
Monday: 4:30–9 PM

Programs & Highlights

Programs & Classes

Adult No-Gi Jiu Jitsu
Kids Martial Arts (alternate Muay Thai & Brazilian Jiu Jitsu)
Muay Thai (Kids program: Mon/Wed)

Instructors & Team

Professor James "Ragnar" Doner
Professor Kurt McCathron
Coach Ish
Coach Satyne

Belt Ranks

Professor James "Ragnar" Doner: Black belt (earned under Professor Mike Geery)
Professor Kurt McCathron: Black belt (BJJ) under Professor Tommy Carpenter of Omega Jiu Jitsu; Black belt in Aikido
Coach Ish: Purple belt in Brazilian Jiu Jitsu under Professor James; Orange belt in Judo under Sensei Taalaibek Tynaliev
Coach Satyne: Blue belt under Professor James; Judo orange belt

Instructors

Instructor Spotlight

Professor James “Ragnar” Doner leads Ragnar Jiu Jitsu as a black belt under Professor Mike Geery and a United States Marine Corps veteran with more than two decades of martial arts experience. You’ll learn from a coach shaped by a lineage that runs through Professor Cassio Cardosi and Master Fabio Gurgel, with instruction grounded in practical no-gi grappling and careful technical detail.

FAQ

Frequently Asked Questions

What BJJ classes does Ragnar Jiu Jitsu offer?

Ragnar Jiu Jitsu offers Adult No-Gi Jiu Jitsu, Kids Martial Arts that alternates Muay Thai and Brazilian Jiu Jitsu, and a Muay Thai kids program on Monday and Wednesday. The academy specializes in no-gi Brazilian Jiu Jitsu for adults, teens, and kids at its Lutz, FL location inside Freestyle Muay Thai.

Is Ragnar Jiu Jitsu good for beginners?

Yes, Ragnar Jiu Jitsu is built for adults, teens, and kids, so new students can join a structured program that emphasizes practical no-gi training. The coaching team includes Professor James “Ragnar” Doner, Professor Kurt McCathron, Coach Ish, and Coach Satyne, giving beginners multiple experienced guides on the mat.

Where is Ragnar Jiu Jitsu in Lutz, FL?

Ragnar Jiu Jitsu is at 19001 US 41 in Lutz, FL, operating inside Freestyle Muay Thai. The academy also features one of the first pit walls in the Tampa Bay Area, giving students a distinctive training environment for wall work and grappling control.

Does Ragnar Jiu Jitsu teach kids' BJJ?

Absolutely, kids train through the Kids Martial Arts program, which alternates Muay Thai and Brazilian Jiu Jitsu. Ragnar Jiu Jitsu also runs a Muay Thai kids program on Monday and Wednesday, giving families multiple options for youth martial arts in Lutz.

Who teaches at Ragnar Jiu Jitsu?

The coaching team includes Professor James “Ragnar” Doner, Professor Kurt McCathron, Coach Ish, and Coach Satyne. Doner is a black belt under Professor Mike Geery, McCathron is a BJJ black belt under Professor Tommy Carpenter and a black belt in Aikido, Ish is a BJJ purple belt and judo orange belt, and Satyne is a blue belt and judo orange belt.