Mary Carey began her coaching career in 2000 as a marathon and triathlon coach for the Leukemia & Lymphoma Society's Team in Training program (TNT), the world's largest and most successful endurance-training program. She has coached dozens of athletes to marathon and half-marathon completion and hundreds of athletes to triathlon finishes. She races triathlons of all distances from sprint to ultra and running races from 5k to ultra.

She now focuses on personal coaching in the Denver area and remotely for athletes throughout the US. Mary is a USA Triathlon Certified Coach (Level I). She is also an Ironman Certified Coach, a Slowtwitch Certified Master Coach, and a swim coach at SwimLabs.

Mary's personal clients strive to achieve personal bests in half marathons and marathons as well as triathlons of all distances. Specializing in beginner athletes, her goal is to help people realize their fitness dreams through endurance sports - completing a marathon, completing a triathlon, or just adopting a healthier lifestyle.