CrossFit’s “Original Firebreather”, Greg Amundson, Shares His High-Performance Fitness Program

Firebreather Fitness Greg Amundson

Firebreather Fitness is now available in bookstores, CrossFit gyms, and online.

Firebreather Fitness

Greg Amundson and T.J. Murphy

Firebreather Fitness Greg Amundson

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Firebreather Fitness is Greg Amundson's program to help you get into the best shape of your life, physically, mentally, and spiritually.

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My Date with Fran, a Chapter from Inside the Box

Inside the Box ITB 96dpi 400pw

T.J. Murphy describes how it feels to attempt the CrossFit workout known as "Fran"

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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Unbreakable Runner

T.J. Murphy and Brian MacKenzie

Unbreakable Runner UR 96dpi 300px_str

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CrossFit Endurance™ founder Brian MacKenzie and journalist T.J. Murphy challenge long-held beliefs about how to train for running.

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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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Inside the Box

T.J. Murphy

Inside the Box ITB 96dpi 400pw

$18.95 Add to cart

In Inside the Box, veteran journalist and endurance athlete T.J. Murphy exposes CrossFit, the fast-growing "sport of fitness."

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T.J. Murphy

TJ Murphy headshot

T.J. Murphy is a veteran journalist, endurance athlete, and CrossFitter.

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