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Roseann Peiffer


Roseann is a triathlete who has always loved being active. Originally a swimmer who eventually took up running to stay fit, Roseann remembers going out for 2 miles during her first run. Now, through discipline, hard work, and believing in her dream, Roseann is a competitive triathlete who can run (and swim and bike) much farther and faster than that. Roseann has a bachelor’s degree in exercise science and a master’s in kinesiology. She is also a USA Triathlon ambassador and coach who loves sharing her excitement, passion, and knowledge with other triathletes.


  • Hometown: Brunswick, OH
  • Currently based: Maumee, OH

Career Highlights

  • Qualified and competed in 2016 & 2015 ITU World Triathlon Grand Final Championship as a member of Team USA
  • Qualified for the 2019 ITU World Triathlon Grand Final Championship in Lausanne, Switzerland
  • Triathlon & Duathlon All American
  • 2018 Ironman 70.3 Chattanooga 11th Overall Amateur Female
  • 2017 Ironman 70.3 World Championship, finished in the top 20% for females
  • 2017 Barry Roubaix Overall Female Fat Bike Division
  • 2016 Ironman 70.3 in Ohio 7th Overall Female
  • Winner of various local triathlons
  • Roseann Peiffer seen running away from photographer towards a row of cars
  • Roseann Peiffer riding a wide tire mountain bike on a dirt path around a pond
White colored tub of mango flavored Osmo Active Hydration Optimized for Women


With triathlon, sports nutrition and hydration are key. It took me years to find the right plan for racing, but Osmo is perfect for me. I love Active Hydration Optimized for Women in Mango.

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