70 Thoughts You Have During Your First 10K

From "if this were a 5K, I'd be done by now," to "so worth it," here are 70 thoughts you can expect to cross your mind during your first 10K.

By Erica Schuckies

Super Challenging Races to Test Your Strength and Determination

Ready to go beyond running in your next race? Here are 10 tough obstacle runs to test yourself.

By Erica Schuckies

Fartlek Workouts to Elevate Your Fitness

Increase your fitness level by changing up your running routine with fartleks.

By Pete Rea

Race to the Altar: A Running Love Story

Jeff and Lucia Smith met on Active's trainer site a few years ago. This May, they held their wedding ceremony after running a mile with friends and...

By Samantha Guzman

3 Ways to Get Faster in Four Weeks

What's the quickest way to run faster in four weeks? Check out these three secrets.

By Sarah Crouch

The Best Shoes for Speed

Want to add a pop to your stride and shave a few seconds off your 5K or 10K time? Add one of these racing flats or fast, lightweight trainers to yo...

By Amanda Casanova

The Secret Sauce to Building Your Aerobic Base

Do you get injured as you increase your mileage? Find out how to build a base safely without getting injured and to run faster than ever.

By Jason R. Karp, Ph.D.

A Guide to Age Grading for Runners

Find out how you can use age grading to give perspective to your masters results.

By Runner's World