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Video: GMA Impact Jiu-Jitsu shares the moment six students earn their black belts

Michael Chapman, owner and head coach of GMA Impact Jiu-Jitsu in Beaverton, OR, has invited us to share the moment th...

Submission Wrestling League ready to kick off

GMA member Michael Chapman invites all for the 8th annual Sbmission Wrestling League, this coming spring. The leader ...

Impact Jiu-Jitsu joins the GMA army

The GMA has a new member in the state of Oregon. Impact Jiu-Jitsu is our newest associate. The team’s head coach is b...
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