Effective coaching and nutrition strategies designed to help athletes achieve healthy habits and athletic excellence.
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Welcome to Trimarni
For the past 12 years, Marni and Karel have shared an active lifestyle together. During that time, they achieved many athletic accomplishments in the sport of triathlon and cycling which led them to turn their passion into a coaching and nutrition business in order to help athletes reach personal athletic goals. This husband and wife team continues to race at a high level, while dedicating their career to helping athletes of all levels, newbie to elite, maximize sport performance while keeping the body in great health.
Between them both, they have successfully finished 24 Ironman triathlons and have qualified for the Ironman World Championship in Kona, Hawaii a combined 10 times.
As highly dedicated athletes, Marni and Karel bring many years of practice, education and skills in their own athletic careers and apply that experience and knowledge to athletes of all levels. They strive to be good role models for their athletes and great ambassadors for the sport of triathlon.
Our goal is to help athletes reach performance goals without compromising health.
We use effective coaching and nutrition strategies to help athletes achieve healthy habits and achieve athletic excellence.
We incorporate scientific research with practical ideologies and apply to real world settings to take current training and racing to that next level.
Let us help you perform at your best by giving you the personalized service that your body deserves.
"Trimarni camps are great. Specific detailed camp schedules are provided to the campers. Successful athletes/speakers brought into camp to expand your knowledge as a triathlete. Yes, strong tough well thought out training with an explanation of the training methods. It is great to meet so many like minded triathletes at the Trimarni Camps. I look forward to finishing off my 2nd season with Trimarni and continuing on for a great 2017 as a Trimarni athlete." -- Jim Nitz
"I purchased a TriMarni prebuilt Ironman plan to get ready for my first Ironman. As I used the plan, I felt more and more prepared and ready both physically and mentally to have a great race day experience. I loved the addition of the strength plan as well. It helped me feel strong and durable, solid and ready for race day. Marni and Karel were great to work with and very knowledgeable! And now I am a Trimarni one-on-one athlete and learning how to train and race to my full potential." - Lisa Comer
"I approached Marni for some help with my fueling strategy for long course triathlon. I knew that I didn't have a repeatable approach and I needed something to practice in training and further test out at Ironman Mont Tremblant. I now have a detailed plan that Marni developed that supported my efforts to a Full distance personal record and left me feeling great at the finish line. The smile and the happy stomach are all the proof I need that this strategy gives me an incredible foundation to build upon. Thanks for the brilliant help!" - Dr. Christopher Morales, PT, ATC/L
"Six weeks from my Ironman race, I decided to obtain a new or better way to fuel my body for training/racing and needed help with my issue with cramping. So, I signed up to use Trimarni One Hour Consult and Race week Nutrition Service. With my limited time with Marni, she quickly provided me with a detailed nutrition plan, she assessed my current nutrition plan and gave me useful tips on hydration, nutrition, and recovery. I found her to be a very knowledgeable and inspiring person. Her race week nutrition plan was very detailed, but easy to follow and now I'm more knowledgeable and have a solid platform for future training/racing. I believe with her invaluable help, I was able to accomplish my goal- PR for my iroman race. For those who want to finish well, I highly recommend using Marni services." -- Larry O'Rourke