You learn to run like a sprinter, you'll be a great distance runner

With my runners now, they get two month-long breaks during the year.

Winning times in the New York City Marathon have not dropped all that much over the years, but rather U.S. runners went backward. In 1983, there were 267 U.S. men who broke 2:20 in a marathon, and by 2000 that number was down to 27.

The marathon is like a bullfight.

Trust me, my runners aren't going to run one event while looking past it to the second event. When they get on the line for the 10K, that's a do-or-die situation for them.

I've found that my athletes run their best races after about 10 weeks of intense training.

I didn't give myself enough breaks during the training year to recover. I didn't understand the power of periodization.