What usually happens is a mismatch between training and nutrition,” Markoff said to the camera. Across social media, ...

Clinical exercise physiologist Heather Milton brings lab-level insight to everyday training, helping runners understand how ...

Starting a run routine can feel daunting—and early form issues can make it feel even harder. But you don’t have to constantly ...

Running improves your health, your energy, and your mood, so you want to keep chasing miles. But as runners get older, the ...

This is where The Runner’s World Guide to Running Form comes in. Hosted by Heather Milton, clinical exercise physiologist, it ...

I spent most of my 20s and 30s burning the candle at both ends. After I graduated from business school, I worked for 15 years as an executive in the consumer goods and retail space. It was really ...

The 2026 Cape Town Marathon took place on Sunday, May 24. About 27,000 runners took to the start line in the South African ...

The final miles of a marathon can crush even well-trained runners. A pace that once felt smooth and controlled suddenly feels ...

On the morning of May 24, Eliud Kipchoge finished the Cape Town Marathon in 2:13:29. The 41-year-old averaged 5:05 pace and was 16th place overall and second place in the masters division. Although he ...

Here at Runner’s World, we love the 5K for a variety of reasons, but one in particular really sticks out: It’s an ...

Gabriel Lewis, a senior at Mount Dora High School in Florida, is a fearless runner. High school senior Gabriel Lewis has ...

The Olympic medalist shares how trail running rejuvenated her career and what’s next at the Western States 100.