Trimarni Coaching and Nutrition is a coaching and nutrition company owned by Boart Certified Sport Dietitian Marni Sumbal MS, RD, CSSD, LD/N and RETUL bike fit extraordinaire, Karel Sumbal.
Marni holds a Master of Science in Exercise Physiology and is 11x Ironman triathlon finisher and 4x Ironman World Championship finisher. She holds a 10:06 Ironman PR. Her husband Karel is a category 1 cyclist turned 7x Ironman finisher, with 2 Ironman World Championship finishes and an Ironman PR of 9:13. He has over 20 years’ experience as a bike mechanic and five years of experience as the GM of the Trek Bicycle Store of Jacksonville, FL.
Marni and Karel have a combined 18 Ironman finishes, 6 Ironman World Championship finishes and many years of experience, education and knowledge as it relates to endurance training, nutrition, cycling, swimming, mastering endurance racing, sport nutrition and putting on top-notch training camps.
Marni and Karel are dedicated to helping athletes create healthy habits to achieve athletic excellence.