Unlock your true athletic potential

Imagine training smarter, not harder, with real-time performance analytics and expert guidance at your fingertips. Whether you’re a beginner aiming to finish your first race or an elite athlete chasing your next personal record, Go The Distance delivers solutions that evolve with you.

Join the next generation of athletes who refuse to settle for outdated coaching methods. Revolutionize your training, accelerate your results, and break through your current limits with Go The Distance Endurance Coaching—where innovation meets endurance excellence.

In 2016, I had a vision…

GTD wants to help you.

After coaching athletes for over 10 years with other organizations, I wanted to make something that guided, respected and celebrated athletes. I enjoy helping the age group athlete improve their game, excel in their sport, and feel good about themselves.

Out of that vision I created GTD Multisport, AKA Go The Distance Endurance Racing. Since then I’ve worked with numerous athletes over the years to help them achieve their goals, including several first-time Ironman, marathon, and ultra race finishers.

What started out in the San Fernando Valley of the Greater Los Angeles area has now spread to Southern and Northern California, central Texas and is now available in the Greater Albuquerque area of New Mexico.

Intentional limits are set for the number of athletes that I invite to the team each year so that each athlete gets the attention that they need to be successful. I’ve added a new coach to handle the Northern California area which will allow us to expand how many athletes we can invite each year.

Curious? Fill out the contact form and one of us will reach out to answer any questions you have.

Always finish with a smile and Go The Distance!

-Tom Mossman, Owner and Head Coach

Discover what makes us different

Whether you're new to the endurance game or a seasoned athlete aiming to elevate your performance, we can help. With more than two decades of coaching and competing in endurance sports, we’ve encountered every challenge and milestone imaginable. Our innovative training strategies and personalized guidance will keep you moving forward, helping you achieve your next best finish line with confidence and determination. Join us and experience the difference expert coaching makes.

The future of sports coaching is here. We combine cutting-edge technology, data-driven insights, and personalized training programs to revolutionize how athletes train, recover and perform. Our innovative approach adapts to your unique physiology, lifestyle and goals, ensuring every workout maximizes progress while minimizing injury risks.

Personalized Weekly Workout Schedules

No cookie cutter programming here. Our coaches craft a bespoke training schedule based on your ability, weekly performance and lifestyle. Got a race on the calendar? We can tailor your sessions to perfectly prepare you for your race, including fueling strategies and power output predictions specific to your race day conditions.

One on One Training Sessions

Need some one on one time with a coach? We can make that happen. Video chats are always available, but if you live close to one of our coaches we are happy to provide real-time, in-person guidance. Personal perspective delivered in real time can be a game-changer.

How are you feeling? Unusual aches and pains when you run? Not increasing your watts on the pedals? Swimming yard after yard in the pool and not getting faster? We can help. Corrections to your mechanics can improve speed, comfort, and help keep you injury free.

Mechanics Correction

Meet the Team

We are excited to meet you and to start your very own endurance journey. Here is a little bit about us. Reach out to learn more.


  • Coach, Ironman, Ultra runner, Husband, Father, Grandfather, I’ve done alot in my life. Ironman u Certified Coach since it’s inception. How far do you want to go? How fast? Commit to yourself and I will commit to you.


  • My athletic journey started in the pool, with swim lessons at age five.  You couldn’t keep me out of the water, which led to swimming competitively for a club team and then for my high school team.  In college, I discovered cross-country running and mountain biking in the mountains of North Carolina, but after a few bad crashes on the bike, I focused my attention on using my newfound love for running in local road races.  This led to a deeper interest in competition-fueled environments when I moved to Florida, where I discovered the beauty of road cycling on the long oceanside highways, which ideally suited my need for speed.  I continued all these activities in socially oriented communities, but in 2014, a friend told me about these unique races that involved all three sports – triathlon.  My curiosity was big enough to want to know more and compete in my first triathlon (an all women’s race) in 2016.  I ended up on the podium, placing 3rd overall.  I was hooked, and this enthusiasm has led me to compete in over 50 different endurance events, including 5k, 10k and half marathon road races, Sprint and Olympic distance triathlons, Duathlons, Ironman 70.3 triathlons, and an all-women’s marathon in 2024.  My racing performance and commitment to training have garnered invitations to the USAT Age Group National Championships for the last three years. However, giving back to the sports community and paying it forward to the next generation of healthy athletes is also important to me, and I’ve enjoyed coaching middle school track and cross country teams, serving the Oakland youth community as a run coach/mentor for Run for a Better Oakland, and volunteering for local endurance events such as the Miwok 100K.

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