Hi. Let me introduce myself. I’m a 38-year-old, distinctly part-time runner, but with a decent base of strength and stamina. I’ve tried, but never managed to run 5K in under 20 minutes. There is, of ...

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 ...

2025 is wrapping up, which means it's time to check in on your life goals and start building new habits. If in 2026 you want to be part of an ever-growing trend of runners, the Apple Watch can be a ...

For many women across the UK, a 5k run is more than just a race – it’s a personal milestone, a weekend ritual (shout out parkrun), and a way to reconnect with community. But how does performance ...