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Join the next generation of athletes who refuse to settle for outdated coaching methods.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…

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, Nevada, Colorado 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 recently added an additional coaching platform to manage athletes which will allow me handle more athletes each year. I use TriDot and Training Peaks for schedule construction. Together, you and I will choose the best platform for you.

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

Always finish with a smile and Go The Distance!

-Tom Mossman, Owner and Head Coach

GTD wants to help you.

Discover what makes GTD different

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

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

Personalized Training Schedule

No cookie cutter programming here. I craft a bespoke training schedule based on your ability, weekly performance and lifestyle. Got a race on the calendar? I 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? I can make that happen. Video chats are always available, but if you live close I am happy to provide real-time, in-person guidance. Personal perspective delivered in real time can be a game-changer.

Mechanics Correction

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? I can help. Corrections to your mechanics can improve speed, comfort, and help keep you injury free.

I’ve been working with Coach Tom for over 3 years now. I had trained myself for the previous 10 years. The difference has been night and day. As I get older, I’m getting faster. I’m learning new things. I’m training smarter. I’m enjoying the work. Tom coached me to my first Ironman in 2022 and I’ve been with him ever since. Tom answers all my questions, and takes great care to make sure I’m ready for each and every race. On top of it, the Go the Distance team/family is fantastic! I couldn’t recommend Tom and Team GTD any more highly!

Chris Hutchison

I’ve been training with Coach Tom for four years, and it’s been an incredible journey. With Tom’s guidance, I’ve prepared for countless marathons and ultra-marathons — and even completed my first 100-mile race, one of the most unforgettable experiences of my life. More recently, Tom helped me train for and cross the finish line at my first IRONMAN triathlon.

Being part of Team GTD has been a true privilege — they’re some of the most supportive, inspiring people I’ve ever met, and cheering each other on during races has created lifelong friendships.

I’m so grateful I decided early on to work with Tom. His coaching helped me unlock my inner athlete and discover a deep love for endurance sports — something that’s been truly life-changing.

Kelly Strull

I came to Coach Tom as a complete triathlon newbie, and he didn t miss a beat. He got me to work right away, but always at a pace that was sustainable, I never had to blow up. Under his coaching, I became efficient in all three disciplines and finished my first 70.3 Ironman and first full Ironman with results I couldn t have been happier with. I ve now been with Coach Tom and the GTD program for over 4 years. In that time, I ve completed multiple 70.3 races, 2 full Ironmans, and several half and full marathons. Tom’s approach is simple but powerful: he listens, adjusts the plan to your fitness and goals, and makes sure the training works for you. The GTD team is full of quality people, and I love the community just as much as the training. And on top of it all, Tom and his wife Cari are simply fun, genuine, and supportive. Excited to keep going with two more full Ironmans on deck for 2026. Go GTD!

Sean Caughron

Meet the Coach

I am excited to meet you and tohelp you start your very own endurance journey. Here is a little bit about me.

Reach out to learn more.

I was introduced to endurance sports in 2002 when I signed up to do my first marathon. I trained with a charity program and ran the longest marathon in my history that year in Maui. And with that I was hooked. I kept doing run events until 2004 when I did my first triathlon, also in Hawaii. It has been non- stop since then.

I began mentoring and coaching with the charity until 2006. I continued to work with friends until I got my own coach in 2010. At that point I began the education programs which would lead to me becoming certified. Since 2012 I have held endurance coaching certifications with USA Triathlon, Ironman U, Endurance Sports Coaching Institute and Training Peaks Coaching.

In 2016 I launched GTD Multisport and began using my own unique approach to personalized coaching to lead numerous athletes from starting lines to finish lines. I’ve coached several athletes to their first Ironman finish lines as well as a few Ultra running finishes.

Currently our team is represented by athletes in California, Nevada, Colorado, Texas and our new home base, New Mexico.

Questions? I have answers. Drop me a note and let’s see how I can help you Go The Distance!

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.