Team Momentous

Past Races

08/14/2022 Breck Epic
07/16/2022 High Cascades 100
06/04/2022 IRONMAN 70.3 Virginia's Blue Ridge
05/21/2022 Xterra Oak Mountain

Marni Sumbal

Greenville, South Carolina |

Primary Discipline(s) Triathlon, Off Road Triathlon, Road Cycling / Criterium, Mountain Biking, Gravel Cycling, Trail Running
Bucket List RaceNorseman
Post-Race DrinkAnything fizzy
Off-Day ActivityLong walk with my dog

I am a Board Certified Sport Dietitian holding a Master of Science degree in Exercise Physiology and triathlon coach. I specialize in coaching endurance athletes, as well as assisting athletes with sport and daily nutrition. I am the author of Athlete to Triathlete, The 365-Day Running Journal and Essential Sports Nutrition and contributs to several magazines like Triathlete and Runners World. I am the owner of Trimarni Coaching and Nutrition, a coaching and nutrition business dedicated to helping endurance athletes excel in sport without compromising physical and mental health. I am a 19x Ironman triathlon Finisher, 6x Ironman World Championship finisher and recently placed 5th age group at Ironman St. George for the World Championship. I love endurance activities and stretching my comfort zone. Late this summer, I finished the 7-day Haute Route Alps, a 500+ mile, 70,000+ feet elevation gain stage cycling race from Nice to Megeve, France. I also just participated in the Xterra World Championship in Molveno, Italy along with my husband. I live in Greenville SC with my husband Karel, who is an experienced triathlete (15xIM Finisher and 5x IM World Championship finisher). We live with our 4 cats and 15 year old dog Campy. When I'm not working, I love being outside in nature.