In my 39th year, after a steady stream of successful races, it was time to level up my training. Fresh off the hardest ...

As Bryson DeChambeau cranks driver after driver, grunting through impact and berating himself for losing one mile per hour of ball speed, the most abnormal thing here is how far the tees are flying.

Many recreational runners don’t have their race paces dialed in. New runners might see a speed workout on their training plan and treat each interval as a heart-pounding, panting, spitting, red-line ...

Most of us can come up with plenty of reasons to avoid speedwork: we might say it hurts; it increases our chances of picking up an injury; it makes us too tired for our other runs… the list is endless ...

Welcome to Play Smart, a regular GOLF.com game-improvement column that will help you become a smarter, better golfer. I’ve been on a mission this winter. The goal? Gain as much clubhead speed as ...