Put your B.E.S.T. Foot Forward.

Endurance Coaching specializing in swim - bike - run

Athlete Driven Endurance Coaching

Training programs are uniquely designed for each athlete and their goals. By learning about each athlete and their current lifestyle, I can create a training program that balances life and training.

The key to an athlete’s success is their ability to complete and be consistent in the training plan designed for them.

Who Is Sarah Portella?

I am an endurance coach (triathlon, run, cycling coaching) with Bolton Endurance Sports Training (B.E.S.T.) based in Nashville, TN. My goal is to provide the highest level of coaching to every level of athlete.

By placing value on two way communication and focusing on progress both great and small, I can help my athletes meet their goals and increase their love of the sport.

Workouts & Upcoming Events

  • 2025 Coaching

    Lock in your Spot!

    I've opened up spaces for the 2025 season. If you are interested in being coached for your next endurance season, message me now!

    Get Coached!

  • Team Camp 2025

    Feb. 27 - March 2

    Tucson, AZ training camp! Rate: $950 (includes Airbnb lodging, Sat. group dinner, camp activities & more)

    This is a USAT sanctioned camp; a USAT license will be required.

    Sign Up

  • Weekly Track Workout

    Last Track Workout: Nov. 21st

    Join us each week in Nashville at the Stratford HS track in East Nashville. 6 a.m. start time.

    Questions?