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Michael Chapman

4th Degree Black Belt



In 1991, Michael began training Jiu Jitsu while living in Japan. After returning to Oregon in 1993, Michael’s pursuit of Jiu Jitsu continued when he started one of the first local garage groups. While training with Matt Thornton, Michael opened Impact Jiu Jitsu in 1998 (first known as SBG Beaverton). Michael received his black belt in BJJ from Chris Haueter in the Spring of 2004. In 2018, Chris awarded Michael the 4th degree on his black belt.

  • Owner & Head Coach, Impact Jiu Jitsu (19 locations)
  • Owner, subleague.com Tournaments (est. 2005)
  • Jiu Jitsu Competitor, IBJJF Pan Jiu-Jitsu Gold Medalist
  • Code 4 Concepts (C4C) Certified LEO Instructor
  • Army Combatives Level 2 Certified

In 1991, Michael began training Jiu Jitsu while living in Japan. After returning to Oregon in 1993, Michael’s pursuit of Jiu Jitsu continued when he started one of the first local garage groups. While training with Matt Thornton, Michael opened Impact Jiu Jitsu in 1998 (first known as SBG Beaverton). Michael received his black belt in BJJ from Chris Haueter in the Spring of 2004. In 2018, Chris awarded Michael the 4th degree on his black belt.

  • Owner & Head Coach, Impact Jiu Jitsu (19 locations)
  • Owner, subleague.com Tournaments (est. 2005)
  • Jiu Jitsu Competitor, IBJJF Pan Jiu-Jitsu Gold Medalist
  • Code 4 Concepts (C4C) Certified LEO Instructor
  • Army Combatives Level 2 Certified

Black Belt Project



From the time the light weight Mike Chapman was a seasoned white belt and held his own with black belts, I knew he was destined for success in the art and sport of Jiu jitsu. Mike is one of those rare coaches who is willing to put it on the line and compete. I’ve seen him go through the hardship of injury, fighting through it, inspiring others and myself… bouncing back even tougher. Impact Jiu Jitsu, under his leadership, has been nothing short of excellent in every arena.