DiscoverCTS Ultrarunning Podcast
CTS Ultrarunning Podcast
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CTS Ultrarunning Podcast

Author: CTS

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Whether you're lining up for your first trail 50K or chasing a buckle at the Western States 100, the CTS Ultrarunning Podcast delivers the science-backed, evidence-based training guidance you need to run farther, recover smarter, and race better.

Hosted by Cliff Pittman, Coaching Development Director at CTS, this podcast brings over 25 years of elite coaching expertise directly to your earbuds. Cliff is a UESCA-certified Ultrarunning Coach and Sports Nutritionist, NASM-certified personal trainer, and an accomplished trail and ultra athlete himself, actively competing in his home state of Arkansas. He has guided athletes through some of the most demanding events in the sport, including the Western States 100, Leadville 100, Cocodona 250, UTMB, the Triple Crown of 200s, and the Sky Running World Championships, and has worked with notable athletes including Olympic marathoner Molly Seidel and elite ultrarunners Zoe Rom and Hannah Allgood.


Cliff's coaching philosophy is simple: training can be complex, but it doesn't have to be overwhelming. Each episode translates cutting-edge sports science and decades of real-world coaching experience into clear, actionable strategies that athletes at every level can understand and apply. From endurance nutrition and fueling to strength training, periodization, and race-day execution, Cliff distills the collective knowledge of the CTS coaching group to help you improve your performance.


CTS was founded by legendary coach Chris Carmichael and has spent more than 25 years developing champions across endurance sports. The CTS coaching methodology is rooted in individualized, science-driven training: the same approach that has taken athletes to podiums around the world now comes to the trail and ultrarunning community through this podcast.


Tune in for no-hype conversations grounded in research and experience.

28 Episodes
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The 10% Rule Reframed

The 10% Rule Reframed

2026-09-2310:23

“Never increase your weekly mileage by more than 10%.” It’s one of running’s most repeated rules, but the evidence doesn't support using 10% as a simple weekly-volume ceiling. A randomized trial found no reduction in injuries from a gradual program based on the 10% rule, and newer research following more than 5,000 runners found no relationship between week-to-week percentage changes and injury rates. Cliff Pittman breaks down where the 10% number does show up in the research, why different s...
Should a low HRV reading change your workout? Is higher HRV always better? And should you trust the readiness score on your watch? CTS Director of Coaching Cliff Pittman breaks down what HRV actually measures and, more importantly, how endurance athletes should use it. He explains why your individual baseline matters more than the absolute number, why HRV can naturally decline during productive training, and when a sustained change actually deserves your attention. HOST Cliff Pittman is the...
There are hundreds of things you could optimize before your first 50K. Very few of them will determine whether you have a successful race. CTS Director of Coaching Cliff Pittman breaks 50K preparation into three tiers: the basics that can make or break race day, the refinements worth getting right, and the marginal gains you can probably stop stressing about. From training volume and event specificity to recovery, nutrition, strength training, gear, supplements, and race-day pacing, this epis...
Downhill running creates a strange mismatch: it can feel relatively easy aerobically while placing enormous mechanical stress on your legs. Coach Cliff Pittman explains what's happening inside the muscle during a descent, why technical terrain increases the cost, and how the repeated bout effect allows your body to become more resistant to downhill-induced damage. He also covers how to train when you don't have mountains outside your door, where strength training fits, when to schedule race-s...
There are two fears Cliff Pittman sees repeatedly: athletes hold onto speed work because they don't feel fit without it, or they avoid increasing volume because they're afraid more running will eventually break them down. In this episode, Cliff explains why both miss the point. He breaks down what aerobic volume actually changes physiologically, why those adaptations take time, how intensity should shift as race day approaches, and how training architecture allows athletes to increase volume ...
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