Can you handle this record-breaking ultrarunner’s brutal workout?

Think you’ve got what it takes? Take on Leadville 100 champion David Roche’s toughest workout yet

How to become a downhill-running dynamo

Whether you’re training for the Boston Marathon (which starts with a long descent) or an ultra-trail race, mastering the downhills will toughen up your quads and make you quicker on the flats, too

How to get faster without speedwork

Three alternatives to getting quick without picking up the pace