Greg Amundson

Greg Amundson

Greg Amundson is a former SWAT officer, DEA Special Agent, U.S. Army Captain, and one of the founding athletes and coaches of CrossFit.

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Brian MacKenzie

Brian MacKenzie CrossFit Endurance _96dpi_400pw UR

Brian MacKenzie is a strength and conditioning coach and the creator of CrossFit Endurance.

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