• Brazilian Jiu-Jitsu
  • Submission Grappling
  • Mixed Martial Arts



UndergroundBJJ, located in Erie, Pennsylvania, is run by the first Brazilian Jiu-Jitsu Black Belt in the area, Mike Rooney.

Classes are offered in Brazilian Jiu-Jitsu (BJJ), Submission Grappling (SG), and Mixed Martial Arts (MMA). Whether you are looking to fight, compete, or just have a good time training, we are your best choice.

New people are always welcome. If you have been waiting to get started, now's your chance, please Contact Us.

Please check out our Frequently Asked Questions page for any other questions. If you don't find the answers, contact us.

Latest Updates

Please enjoy our newly designed website. It has been quite a while since we updated.   12-21-2014

Congratulations to Adam Kraut for earning his purple belt in Brazilian Jiu-Jitsu.   12-11-2014

To everyone who helped out and competed at Mission Submission 4, Thank You.   11-22-2014

Congratulations to Trevor Doust for earning his blue belt in Brazlian Jiu-Jitsu.   10-25-2014

More news...
AGC: Queen City Grappling Championships   01-16-2015

Hamilton, OH   Tournament

Youngstown Jiu-Jitsu Open   01-26-2015

Youngstown, OH   Tournament

Rock Solid Grappling Challenge   02-21-2015

Slippery Rock, PA   Tournament

More events...

What We Do


Brazilian Jiu-Jitsu

BJJ is a martial arts/combat sport that focuses on grappling and especially ground fighting. It teaches that a smaller, weaker person can successfully defend against a bigger, stronger assailant by using leverage and proper technique.


Submission Grappling

SG is a general term describing the aspect of combat sports that focuses on ground fighting with the aim of obtaining a submission using submission holds. This refers to competition and training that does not use a 'jacket' or 'gi'.


Mixed Martial Arts

MMA is a full contact combat sport that allows the use of striking and grappling techniques, both standing and on the ground, including boxing, wrestling, BJJ, Muay Thai, and other styles.