“Gut Check!” is a term commonly used in the military. It means “we’re going to test you and try to break you to find what you’re truly made of!” For those willing to test their courage, character or determination, Gut Check Fitness offers unparalleled Boot Camp Training and elite events, including the King of the Hill Trail Running Series and an extreme event training group called The SUCK.

Gut Check Fitness offers San Diego’s BEST and TOUGHEST Boot Camp. We’ve won the title of “Best Boot Camp in San Diego” by the A-List and “Hardest Workout” in San Diego by Competitor magazine. We can promise you will get sweaty and dirty while enjoying one helluva workout!

Gut Check Fitness was started by a man who understands commitment to goals. Joe Decker went from overweight and out of shape, to the Guinness Book of World Record’s “World’s Fittest Man.”

Joe leads Gut Check Fitness with a world-class team of instructors, offering unmatched instruction, high-energy workouts and positive reinforcement. All Gut Check Fitness classes and events are tailored to challenge every athlete, with a built-in social network of fun-loving people.

We ARE the next level in fitness … and we CAN prove it! Try a Gut Check Fitness workout today.