To put it another way, Michael Jordan was a gym rat.
Yes, winning the gold medal was undoubtedly the biggest day of my career - mostly because I won the way I had prepared to run it. It was a totally satisfying experience.
Intervals and other types of speed work are essential to improve running speed.
You don't run 26 miles at five minutes a mile on good looks and a secret recipe.
My goal is to break three hours in a marathon
Why couldn't Pheidippides have died at 20 miles?