Hallie Truswell   Zūm Racing

Zūm Racing is a small boutique team of talented endurance triathletes and runners who race everything from sprint to Iron Distance triathlons and 5ks to 100 mile ultraruns. I offer personalized, custom coaching for a select group of athletes. I work with focused, dedicated men and women of all abilities to prepare them to reach their goals whether it’s completing a sprint triathlon, running a faster marathon or qualifying for Kona.


I have over 25 years as a coach, swimmer and triathlete. I've combined years of training and racing experience and passion for endurance sport to work closely with athletes to help them achieve their dreams and reach their goals. Recognizing the art and science behind successful coaching I hold USAT Level II Endurance certification, RRCA Run certification, Slowtwitch Swim Coach certification and continually stay abreast of current training methodologies.

I offer personalized coaching for a select group of athletes of all abilities from those completing their first half marathon to those pursuing high levels of performance. The athletes I coach have successfully qualified for and participated in: Ironman World Championships, 70.3 World Championships, Age Group World Championships, NYC Marathon, Boston Marathon amongst many other races.

Working with only 15 athletes at any given time allows me to provide focused attention on each athlete for a unique, personal experience.


Seattle, WA
United States

Preferred Athlete Levels

Intermediate, Advanced, Professional


1-on-1 Coaching, Consultations, Group Coaching, Local Coaching, Remote Coaching, Strength Training, Nutrition, Mental Skills, Run Analysis, Swim Analysis

Sport Types

Triathlon, Running, Duathlon, IRONMAN, Swimming




Seattle, WA
United States