Marcus Filly is the owner of Revival Strength and creator of Functional Bodybuilding.  Growing up in the San Francisco Bay Area, he played multiple sports as a child including soccer, baseball, and golf, which eventually led to a collegiate career in soccer at the University of California, Berkeley. There he earned his degree in Molecular and Cell Biology with an emphasis in Nutrition and Physiology. After Berkeley, he completed a year of graduate work at the Ohio State University School of Medicine.

His interest in both athletics and human health and performance eventually led him to CrossFit in 2007. He has gone on to compete at the CrossFit Games 6 times, three times as an individual (2016 12th fittest) and three times as a team member (2012 6th fittest team). Marcus is also the captain and member of the Phoenix Rise in the NPGL. For two years he has been voted to the all GRID league team, in 2016 earning 1st team honors, and in 2015 earning the award for leadership excellence.

Marcus has been a health and fitness coach for 8 years since leaving Medical School in 2009. He was formerly a CrossFit facility owner for 5 years, has completed all 5 of the OPEX CCP courses, and has coached clients remotely from all over the world. He has coached athletes at the CrossFit Games as well as several Regionals athletes.

He lives with his wife Megan, and daughter. He lists his parents, Barbara and Roy, as his role models and drive to succeed in life.