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Arin Peterson

Arin has been coaching triathletes and runner’s since 2009. She is a USAT Level 1 certified coach and has experience coaching beginning triathletes through Kona qualifiers. Arin has a bachelors degree from the University of Redlands in Photography. Along with coaching, she is the Aquatics Director at The Country Club at Woodmoor where she runs the master swim program and their local triathlon club.


A Colorado native who grew up swimming, Arin was inspired by Julie Moss’s dramatic 1982 finish line crawl in Hawaii’s Ironman. It wasn’t until 2008 that she crossed her first Ironman finish line, but she has been hooked ever since. Arin has completed 20 marathons and 7 Ironman triathlons. Her proudest moments in her triathlon career so far are qualifying and competing in Ironman World Championships twice, running the Boston marathon, and watching her first ironman client achieve her first finish line.


Arin is mother of three amazing kids and spends all of her spare time supporting them and volunteering at the school.

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