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Our Mission

We are dedicated to helping you develop physical, mental, and emotional resilience for all the challenges of life.  We believe it is our duty as a martial arts training center to provide you with a physically challenging experience while also fostering a community of people that help each other towards their goals.  


Our Training

We are a striking and grappling gym that provides training in Brazilian Jiu-Jitsu, kickboxing, boxing and self defense.  Our classes are suitable for young and old, beginner and expert and enables one to develop physical and emotional real-world skills to tackle real-world challenges. 


Our Coaching

Our coaches are highly trained and experienced in teaching children and adults legitimate and effective self defense and martial arts skills. The coaches have real-world and competitive experiences that enable them to effectively teach those wanting to learn self defense or compete.



Asgard Combat Sports is an approved training facility with the We Defy Foundation.

We Defy provides veterans coping with military-connected disabilities a long-term means to overcome their challenges through a Brazilian jiu-jitsu and fitness training scholarship program.

Asgard has several disabled veterans and veterans so we know first-hand how jiu-jitsu can improve your life. If you know of a disabled vet in our area, please share this and have them stop in.

Find out more

How is Brazilian Jiu-Jitsu different from other martial arts?

The self defense and competition aspects of Brazilian Jiu-Jitsu (BJJ) are very technical and physically demanding.  It takes an average of 10 years to reach Black Belt in BJJ. The belt colors are white, blue, purple, brown and black.  It is generally accepted that a blue belt in BJJ is roughly equivalent to a black belt in other martial arts.  

A purple, brown or black belt in BJJ can incapacitate virtually anyone on the planet in a matter of seconds in a self defense situation.  Many doubt that, but when they step on the mat and grapple with an advanced belt, the fight is over quickly in favor of the BJJ fighter.

In addition, most BJJ fighters are trained in other full-contact martial arts like kickboxing or boxing.  BJJ is devastatingly effective. It is not just a sport but the most effective method of self defense.

The Jiu-Jitsu brotherhood produced an excellent article on the belt progression in BJJ. Check it out by clicking on the link directly below.

Read about BJJ


Our Coaches

Stephen Hall (Odin)


Head Coach/Owner, Asgard Combat Sports.

Expert in military Combatives, kickboxing and Brazilian jiu-jitsu (BJJ); Certified Team USA Boxing Coach; National BJJ competitor.

Received Blue Belt from Black Belt James Clingerman of Indiana BJJ Academy.  Received Purple Belt under Black Belt André Galvão at Team Atos.  

Brazilian Jiu-Jitsu Brown Belt under 3rd Degree Black Belt Jason Keaton. 

US Army veteran.  DoD-certified TC3 Medic.  Field Artillery (13B) Section Chief (M109 Howitzer).  Suffered blast injuries in the line of duty.

Bioengineer. PhD, Purdue University

Nate Guthrie


Kickboxing and Jiu-Jitsu Coach, Asgard Combat Sports.

Experience in competitive kickboxing and jiu-jitsu. 

Received Blue Belt under Black Belt André Galvão at Team Atos.

Brazilian Jiu-Jitsu Purple Belt under 3rd Degree Black Belt Jason Keaton.  

Brown Belt in Tae Kwon Do.

President, Blue Mesa Engineering

Engineer. M.S., Purdue University

Greg Adams


 Kickboxing, MMA and Jiu-Jitsu Coach, Asgard Combat Sports.

Experienced kickboxer, competitive jiu-jitsu athlete and former MMA competitor. 

Received Blue Belt in Brazilian Jiu-Jitsu from 3rd Degree Black Belt Jason Keaton.  

Black Belt in Tae Kwon Do.

Justin Herbst (Punisher)


Kickboxing and MMA Coach, Asgard Combat Sports.

Experienced kickboxer and MMA fighter. Began training in high school with first MMA fight while still in school. 

Over 30 MMA fights with multiple championships as amateur and pro.

Undefeated in kickboxing competition and pro title holder.

Justin Brock


Kickboxing and MMA Coach, Asgard Combat Sports.

Experienced in military Combatives, kickboxing and MMA. 

10 semi-pro boxing matches, 11 professional MMA fights. 

US Army veteran. Army Firefighter (21M now 12M).  Suffered injuries during firefighting operations in the line of duty.

Our Classes

Brazilian Jiu-Jitsu


Brazilian jiu-jitsu (BJJ) is a martial art, combat sport and one of the most effective forms of self defense.  It contains stand-up maneuvers, but it is most famous for its devastating ground-fighting techniques. Gaining superior positioning—so one can apply the style’s numerous chokes, holds, locks and joint manipulations on an opponent—is the key in BJJ. 



Kickboxing is a combat sport that consists of punching as in boxing and adds kicks from a standing position. Training in kickboxing/boxing allows one to control stand up aspects of a fight through movement, defensive maneuvers, and striking attacks. In addition to being an excellent form of self defense, especially in conjunction with Brazilian jiu-jitsu, it provides an excellent whole-body workout.

Youth Self Defense


The Youth Self Defense class has a minimum age requirement of 10 and focuses on using Brazilian jiu-jitsu (BJJ) as the primary means of self defense.  In a self defense scenario the ability of someone to defend oneself arises from a real working knowledge of techniques. Those that wish to compete in sport jiu-jitsu and grappling can train to do so in this class. 

Jiu-Jitsu Team Lineage


BJJ lineage: Mitsuyo Maeda > Carlos Gracie > Carlson Gracie > Renato Tavares > Jason Keaton  

Team USA Boxing


Asgard Combat Sports is a Team USA Boxing Club. 


“The biggest lesson I learned from jiu-jitsu was how to truly know myself” – Carlos Gracie

“Jiu-Jitsu is a baptism by combat, and serves a purpose in the inner life of the individual that has always existed, but our modern culture fails to acknowledge.” - Chris Matakas 



"Big city coaching and knowledge in our little town.  Coach Hall has a great passion and knowledge for teaching BJJ and it is great to learn from someone like him!  This is a quality gym for sure!"

- JT

"The training I received was great and it helped me learn self defense and helped me lose weight."

- Cameron 

"The instruction I have received from Coach Stephen Hall and the other coaches has been top notch.  They have a wealth of knowledge, and are quick to share it with anyone willing to learn. Don't hesitate to stop by and see what it is all about, you will not regret it."
- Matt  

"I feel like a million bucks!  Thanks to everyone who came out for kickboxing and jiu-jitsu today.  It feels so great to be back."  
- Greg

"Excellent coaches and great people to train with.  Awesome group.  My kids loved it. Nice to see a quality place local to get it in! "

- Jay

"Coach Hall, Luke keeps saying he is excited for baseball but you are the only reason he does not want to quit jiu-jitsu.  You have touched that little boy's heart.  Thank you for everything!"
- Amy

"Good system with very knowledgeable coaches running the classes."

- Justin

"Great team with a very knowledgeable coach.  I have trained with Coach Hall for many years...he is a warrior both on and off the mats."

- Scott 

"Great group, highly effective and friendly.  You can't get any better!"

- Kale

" Great instructors! On point instruction! Great people as well!"

- Brian

"Coach Hall is a wonderful jiu-jitsu instructor and Greg is awesome with kickboxing! No egos and all class. I’d recommend any day of the week."

- Zack

"At Asgard Combat Sports you will develop skills and confidence in yourself, experience hand to hand training and have the ability to work with other skilled and knowledgeable like minded individuals."

- Eric

"Can't say enough about Coach Hall! Great instruction and leadership with tons of class. It is a family at ACS and everyone supports everyone, on and off the mats.  BJJ has been a drastic change from my normal sports and what an amazing journey it has been. ACS has played a pivotal role in me being able to develop myself and my skills with lots of fun and laughs along the way! "

- Jeff


* Open mats are free to visiting athletes

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Asgard Combat Sports

1415 North Main Street, Monticello, IN 47960