Our Story

“The BEST Fitness Community in the WORLD”

B3 is a not just a gym but a dynamic training facility.

We are Personal Training, CrossFit, Group Training, Bootcamps, and Nutrition Education. We serve individuals of all fitness levels to lose weight, gain muscle, get lean, get strong, get fit, be healthy, and get in the best shape of their life.

We are the home of the best personal trainers in Gainesville, the home of B3 CrossFit, and recognized as the best gym community in Gainesville, FL.


1. People First

2. Better than Yesterday

3. Always do the right thing

  • November 2009

    First outdoor session as “Functional Fitness”
  • December 2009

    Rebrand as “Body by Boris” after Founder Chris “Boris” Marhefka
  • January 2010

    First official memberships to “Boris’ Bootcamp”
  • January 2011

    Body by Boris grows from zero to fifty members.
  • March 2011

    Body by Boris moves into Gatorball Baseball Academy
  • October 2012

    Body by Boris grows from fifty to 100 members, moves to new facility
  • June 2014

    Body by Boris named “Best Fitness Community in Gainesville” by HOME Magazine and PeerFit
  • January 2015

    Body by Boris affiliates with CrossFit Inc. as B3 CrossFit
  • January 2016

    Body by Boris re-brands as “B3”, starts renovations on new gym
  • July 2016

    B3 opens the doors to the only gym of its kind in Gainesville


Just select a time that works for you and schedule time to meet with one of our coaches! It’s that simple.