(CNN) — A 16-year-old from New Zealand has set a new world record for the fastest mile run by an under–18 athlete. Sam Ruthe crossed the finish line in an extraordinary 3:48.88 minutes at the John ...

Track prodigy Sam Ruthe “didn’t expect” to break a world record. The 16-year-old New Zealander set a new record for the fastest mile by any under-18 runner in history with a time of 3:48.88 at Boston ...

For the past eight weeks, I have been running longer every weekend than I ever have before. I’ve improved my endurance, overall fitness, and even my confidence. Now that I’ve proven to myself I can ...

When the opportunity to run the 5th Avenue Mile in New York City came around this year—they have a media mile in which Runner’s World editors can participate—I had already been about six weeks into ...