Member Spotlight

A woman with long brown hair is smiling and wearing a black tank top

What inspired you to become a part of Diesel?

I was motivated to join Diesel when my daughter, Lily, started catching with Mat Nelson. He suggested she give Diesel a try. She did and loved it. I liked that their workouts were sports-specific and customized to the athlete's goals. I also saw firsthand the results Lily and Mat were both gaining from working out there. 


What were your initial goals when you first started working with Diesel?

Honestly, I have been running and doing yoga for years, and I was ready to switch things up, add weights back into my routine, and build more muscle. So I figured, why not try it for myself?


What have been some of your most significant accomplishments since joining Diesel?

Since joining Diesel, one of my most significant accomplishments has been hiking Camel Back Mountain and Devil's Bridge in Arizona. Diesel prepared me from a strength and cardio perspective, but I may or may not have had a mini panic attack after I thought I was going to slide down the side of the mountain. I like to do at-sea-level activities. 


What do you enjoy most about being a member of Diesel?

What I enjoy the most about being a member of Diesel, besides my workouts, is the sense of community. It feels like a second home.

The word health insurance is written in wooden blocks on a calendar.
May 29, 2025
One of the most common questions we get at Diesel Optimization is, “Do you take insurance?” And we get it—navigating payment options can be confusing, especially when you’re ready to start your wellness journey. Here’s the short answer: Yes, we accept insurance. Now, here’s the breakdown: Diesel Optimization is a hybrid facility , that accepts cash and insurance . While we may not be in-network with every provider just yet, we welcome all insurance plans and handle verification on the back end. That means you can focus on your recovery while we check the details for you. “We’ll check everything on our end and let you know what’s covered. We always do our best to make the process smooth and transparent.” — Phil Wallin, Founder We’re in-network with a few providers (especially on the performance side of things), and more are being added as we grow. If we’re not in-network with your provider yet, don’t worry—many clients still use their out-of-network benefits successfully.
A female softball player wearing a maroon jersey with the letter s on it
April 10, 2025
At Diesel Optimization, we believe great coaches are made through experience—and few have a résumé as compelling as Cassidy’s. A Florida native and former Florida State University softball star, Cassidy brings championship pedigree and rehab expertise to every athlete she trains. Whether you're stepping onto the field for the first time or gunning for a college scholarship, Cassidy’s story proves she knows exactly what it takes to succeed—and recover—at the highest level
A man wearing a train hard shirt is pulling a sled
March 5, 2025
Located in Tampa, Florida, Diesel Optimization is a premier performance facility dedicated to enhancing athletic potential across all levels. From professional athletes to adults and the youth population, Diesel Optimization provides tailored training programs that maximize performance, reduce injury risk, and build long-term athletic success.
More Posts