Train Smarter

with the Science of Results

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Goal Oriented

with Clear Communication

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Data Driven

Individualized Training

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Coaching & Nutrition Services

Source Endurance strives to help each client enjoy the success that comes with performing an exceptional ride on days that matter to them.  This success helps the athletes live their best lives through positive and successful experiences.

Our coaches are true athletic performance advisors and have extensive experience in road cycling, mountain biking, cyclocross, gravel, time trials, track, multisport, XC ski, Zwift (virtual racing), and more. In addition, our in-house RDN expands our professional services and enhances the wealth of knowledge we leverage to maximize your coaching relationship and provide you with the tools to reach your goals.



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Camps & Clinics

Being at a Source Endurance cycling camp is like being a professional, but without all the pressure or hype. Enjoy learning from professional coaches and athletes in a comfortable, adventurous setting. We offer gravel, road, cyclocross and criterium camps.

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From The Coaching Chronicles


Brody McDonald Team USA

Brody McDonald: U23 World Championship Road Race Prep

By Adam Mills | August 10, 2023

Brody McDonald is one of the favorites to win the U23 World Championship road race in Glasgow. In this article, we take a look at his training and preparation for the race. We discuss his focus on volume and zone 2 training, his on-the-bike nutrition, his racecraft, and his taper. We also give our predictions for how he will perform in Glasgow.

JP Brocket Intelligentsia Podium

Intelligentsia Cup Podium Finish After Injury

By Adam Mills | August 9, 2023

JP had not raced a proper high-level USA criterium since mid-2019, and was concerned about the caliber of racers at the Intelligentsia Cup. He was also still recovering from a double crash in April, which resulted in a broken shoulder blade and a month off the bike.

Cory Williams- Riding

Cory Williams, Evolution of Excellence

By Adam Mills | June 30, 2023

I had heard about Cory prior to 2016 but in all honesty I didn’t know much about him.  I knew he was one of the fastest and most explosive field sprinters in North America.  But his Achilles Heel was that he couldn’t consistently reach the finish line with the peloton. As the Performance Director on the Elevate- KHS Pro Cycling Team there was a distinct need to see improvement from one of the team’s designated closers.  

"My work/life balance has not always allowed me to train/race or even ride as much as I would like. I appreciate my coach for his willingness to adapt to my challenging schedule so that I am able to enjoy my limited time on the bike without feeling guilty or frustrated for having a lack of fitness. Adam and Source Endurance have been a great partner for the past 10 years both on and off the bike!" 

- Patrick Robinson

“My season goal was to finish DK200.  Goal crushed.  I can’t say enough how well the plan leading up to Dirty Kanza worked out.  Perfect on so many levels, I was beyond ready mentally and physically, evidence by beating my DK goal by almost 2hrs.  BWR challenged me technically, but the rest was a piece of cake in terms of my readiness for the duration and heat.”

– Sonja Johnson

“I’ve loved working with Grant and Source Endurance so far, really happy wtih the results I’ve been seeing this cross season!”

– Alex Edwards

“Just wanted to say the year is turning out okay despite rocky winter. Steady build has me seeing power numbers as high as I’ve seen in a decade. Now onward to DK 200. Thanks for the guidance!”

-Trey Harrison

“Basically just writing to say a big thank you.  I truly don’t think my performance would be where I’m at without the training regimen you provided. During those primes and sprints I felt unstoppable.  I was calculated, composed and even more importantly, coached, on exactly what I needed to do.”

-Chris Lowry- La Crosse, Wisconsin

Thank you so much for your help. With your help I had exactly what I needed to stay healthy and fueled so I could keep my mind on racing. Minimal cramps with your electrolyte prep three days prior and all the calories I needed to finish up in the 10% of the Unbound Gravel 2023! Thanks again for taking all the guesswork out of my nutrition plan and helping me in the top 10%!
- Sebastian Alvarez