Personalized coaching for athletes of all levels to break through limits and chase their dreams


1-on-1 Coaching
Individualized triathlon, running and gravel or road cycling coaching programs for athletes of all levels; ranging from elite performers to non-competitive beginners.
Personal TRAINING
Personal and science-backed instruction allows athletes to safely enhance their performance and better themselves inside and out, while maintaining focus on their performance goals!
Training Plans
Stuart Coaching offers structured and progressive training plans through the Training Peaks platform, with mobile access and daily email reminders of workouts.
Expert Guidance, Trusted Results
Head Coach, Kari Stuart, combines experience, education, and a passion for science-backed training to create programs tailored to your life, fitness, and experience level.
As an athlete herself, she understands the demands of training while balancing a business and a busy family. Whether you’re chasing a PR or simply looking to train smarter, Stuart Coaching helps you find the balance between performance and real life.
TOGETHER, WE'VE GOT THIS!
why hire a coach?
Hiring an endurance coach is a big decision. It is a financial investment, and a commitment to a training process and philosophy that may be new. While it may feel like a luxury, there are benefits to working with a trained professional.
- Expert Guidance + knowledge to turn weaknesses into strengths!
- Confidence building to boost your mental game
- Accountability and motivation to stay on track
- Performance Optimization: train smarter, not harder
- Individualized trianing plan with smart progression to reduce your risk of injury
- Strategic planning to help maintain work-life-training harmony
What our athletes have to say

Kristi Gilbert
I found Kari on the IRONMAN website, reached out to her and she responded right away! I feel like we clicked from the get-go! She developed a training plan for me on the bike that gradually built up my endurance and has led me to believe that I WILL BE ABLE TO DO IT!! In addition to being a great planner and offering tons of support, she really dug into the data (I LOVE data) and she’s provided information about nutrition. I can not recommend her enough – unless you reach out to her and then it makes it difficult for me to hire her again as my coach. But seriously, she is great! And a triathlete herself.

Betsy Tyson
Kari is an exceptional coach who has had a major impact on my overall health and well-being. I’ve benefited so much from her expertise and clear passion for helping each of her clients excel.

Dean Witting
“Our family has benefited in many diverse ways over the past 6 years through Kari’s coaching. She is an experienced coach for both physical and mental growth. All three of my daughters have gained knowledge, confidence and athletic skill. Each daughter with slightly different needs, Kari developed and executed programs for strength and stamina for competitive swimming, running and triathlons. She has built a positive relationship with them and is considered a mentor and role model.
Aside from her significant impact on my teenage daughters, Kari has helped me achieve tremendous accomplishments as a USA Triathlete. I’ve successfully accomplished higher level goals through her dedication as a triathlon coach. She has guided me successfully through Sprint, Olympic and 70.3 Ironman distances along with achieving a 26.2 Marathon this past Spring. Her knowledge for the physical, mental and strategic nutritional planning have made it possible.”

Kenton Hancock
I have been working with Stuart Coaching for 1.5 seasons. I had previously experienced challenging times with physical injuries and illness and had been fortunate enough to build a strong local support team. However, I lacked the connection I desired with my previous coach. I wanted someone who was as invested in my journey as I was, and knew they were going to call me out when I was being stubborn and help me reach my athletic goals.
We initially sat out to reel in my first sub 12-hour IRONMAN. After some personal setbacks nearly derailed my season, we pivoted the focus to bringing the joy back to the sport for me and driving the foundation I needed to reach my goals.
Kari’s steadfast desire to help her athletes as well as her understanding of life’s realities and how to adapt to do the best work you can with the resources and time available allowed me to still break 12 hours in my Ironman. 11:28:34 and achieve IRONMAN All World Athlete Bronze Status (top 10% Age group award).
I couldn’t be happier with my coach, and I am looking forward to many more seasons of success and reaching ever loftier goals.

Erika Kuhnle
I picked Stuart Coaching because of consistent word of mouth dramatic improvements in race results. What I found from my working with SC, was that I was blown away by the peace of mind in having a training calendar to rely on instead of flubbing my way to a big scary race with only big training days on the calendar on my own, filling in with whatever I could manage time wise. It was super helpful to have Kari push me through my weakness which is regular bike training, and she found a trouble area in my physiology for my swim stroke which helped her to add specific strength training routines to address and improve the issue. This all brings peace of mind and a longer race life, which keeps me coming back. Besides the fact that Kari actually cares for her athletes, which is something very hard to find.

Gabriele Gottlieb
“Kari cares deeply about her athletes and I have benefitted greatly from her expertise in triathlon training, in personal training, especially weight training, and in nutrition. What I value most about working with Kari is her recognizing me as an individual with strengths and weaknesses, preferences and dislikes, and goals that are specific to me. As an older athlete, these aspects are important to me as a PR is often not the goal but it is more about me feeling accomplished about my training and my performances.
I am also an outdoor athlete through and through and I tend to underperform in indoor settings. Kari has been awesome in finding a balance between focused, structured training and allowing some room for playtime by integrating fat biking, horseback riding, skiing, and hiking into my training schedule.”
Find your Balance, Crush your Goals, Enjoy the Journey
Science-backed endurance coaching is a click away.