Personalized Endurance Coaching
Train with purpose.
Race with confidence.
I provide personalized coaching for swimrun, trail running, off-road triathlon, adventure racing and other endurance sports. All my coaching is delivered through Envol, where I am part of an international community of endurance athletes and coaches.
Proud to coach with Envol
All my coaching is delivered through Envol. As an Envol coach, I work directly with athletes on personalized training while connecting them with an international community built around supporting one another, training together and sharing the adventure.
Whether your goal is a first swimrun, an ultramarathon or a challenging multisport race, you work with me as your coach through the Envol coaching platform.
Coaching built around the athlete, not just the calendar
A training plan tells you what workout to complete. Coaching helps determine what training you need, when you need it and how to make it work around your job, family, travel, recovery and real life.
Personalized Training
Your training is developed around your fitness, experience, schedule, goals and the specific demands of your target events.
Ongoing Guidance
Training is reviewed and adjusted as your fitness, availability, recovery and race preparation evolve.
Race-Specific Preparation
Develop the endurance, skills, pacing, nutrition strategy and confidence needed for your course and racing environment.
Who I coach
I coach athletes preparing for their first endurance event as well as experienced racers pursuing ambitious goals. Every coaching relationship is managed through Envol.
Swimrun Athletes
Individual and team preparation covering swimming, running, transitions, equipment, towing, race execution and technical terrain.
Trail and Ultra Runners
Structured preparation for climbing, descending, technical trails, long-course durability, fueling and race-day execution.
Multisport Athletes
Coaching for off-road triathlon, adventure racing and endurance athletes balancing multiple disciplines within one training program.
Meet Your Coach
Marcus Barton
With more than 15 years of supporting athletes across multiple sports in ambassador, clinic and race-director roles, Marcus has built deep expertise in disciplines ranging from off-road triathlon and trail running to his true passion: swimrun.
By 2024, he had completed more than 80 triathlons, 20 adventure races and 50 swimrun races, giving him a unique and intimate perspective on the athlete experience. Along the way, he has led numerous triathlon and swimrun clinics, served as a sport ambassador, directed triathlon and swimrun events and now serves as co-race director of the legendary Rockman Swimrun.
Marcus’ swimrun journey began in 2015 at Rockman, followed later that season by the ÖTILLÖ World Championship, before it officially carried the World Championship title. Since then, his athletic and professional focus has centered on swimrun. An Envol coach since 2020, he works with swimrunners, trail and ultrarunners, and multisport athletes through Envol Coaching. He is deeply engaged with the swimrun community in both Sweden and the United States.
Experience and achievements
- Top Male in Points, ÖTILLÖ Swimrun Ranking 2023
- 2× Top American Team, ÖTILLÖ World Championships
- 5× Finisher, ÖTILLÖ World Championships
- 4× Finisher, Rockman Swimrun, including 2nd, 3rd and 5th overall finishes
- 5× Team USA athlete in triathlon
- 2× USAT Age Group National Champion
- 7× USAT All-American
- 7× XTERRA Regional Champion
- Mr. XTERRA 2016
Ready to climb to new heights?
Let’s talk about your goals, upcoming races and how we can work together. All my coaching is delivered through Envol, combining personalized training with a community of athletes who share your passion for endurance sports.
Marcus Barton is an Envol coach. All coaching for swimrun, trail and ultrarunning, multisport and endurance-event preparation is delivered through Envol Coaching.
