Listen to a Teenager to Run a Faster Marathon
By Caitlin Chock
Want to run a faster marathon? One of the best marathoners in the U.S. might only be 18 years old, but she's learned a lot about what it takes to be s
Take on a 5K run with our ultimate 5K training guide. Sign up for a 5K, find 5K training tips, and learn more about this popular race distance.
Caitlin Chock is a freelance writer, artist and designer who covers all things running.
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