KoopCast
KoopCast
Jason Koop
When to Switch from Running to Walking to Maximize Ultramarathon Performance with Jackson Brill | Koopcast Episode 108
1 hour 18 minutes Posted Dec 23, 2021 at 6:00 am.
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Information on coaching-
https://www.trainright.com

Koop’s Social Media
Twitter/Instagram- @jasonkoop