Our Story

More than just a gym. We are a community built on strength, support, and real progress.

More Than Just A Gym

Welcome to Natural Selection CrossFit. Not just a place to get healthy and stronger, but a community of people who push you to be the best version of yourself you can be.

Natural Selection CrossFit started in 2010 with three men who wanted to have fun and have somewhere to workout. Shortly after our Owner/Head Coach Leo Barillas took ownership and grew the facility to what it is today. A loving environment of coaches that love to see you succeed.

Natural Selection CrossFit is the longest standing CrossFit gym in Tri Cities and is excited to aid in your fitness journey.

Step into the version of you that's stronger, fitter, and more confident.

Meet The Founder

Leo Barillas

Owner & Head Coach

As a young athlete in middle school and high school, I always had a passion for fitness. Shortly after graduating High School I shipped out for boot camp to MCRD Camp Pendleton to become a United States Marine. My athletic background and drive aided me in being at the top of my graduating platoon.

While in the Marines I found CrossFit and got many certifications. After falling in love with the sport I decided I wanted to open up a CrossFit gym. I got out of the military and moved back to Tri Cities Washington shortly after having my first born.

I started volunteering at Natural Selection CrossFit and was offered ownership by the owners at that time, because they noticed the value I brought to the table. I am now the sole owner of Natural Selection CrossFit and have big plans for the future.

Welcome to Natural Selection CrossFit. Step into your strength.