Average Time and Pace Prep for Your First Race Tips to Improve Time If you’re new to running, a 5K is likely the first big race on your calendar. The 5-kilometer race, which is about 3.1 miles, is a ...

At Runner’s World, we love geeking out on the incredible numbers behind great running performances. When 16-year-old Cooper Lutkenhaus recently broke almost every high school 800-meter record in the ...