Macro Pacing: What It Is and Why It Matters

Ever since my book How Bad Do You Want It? was published in 2015 I’ve received a steady drip of emails from struggling high school runners, and occasionally also from their coaches and parents. Last week I got one from a runner who was frustrated by a seemingly...

Is Periodization Overrated?

An interesting new study by researchers at the University of Western Australia investigated the effects of periodization in the training of runners. Periodization is the practice of sequencing workouts in such a way as to maximize fitness for a race of a particular...

80/20 Triathlon Is Here!

Several years ago I got an idea for a book called A High-Mileage Manifesto. The title pretty much says it all: It was intended to be a hard sell for high-volume run training and an antidote to things like CrossFit Endurance and Run Less, Run Faster, which were leading...

Are You Uncoachable?

The best teacher I ever had was a sociology professor at Haverford College named Mark Gould. I’ll never forget the first day of the first class I took with him. He basically spent 90 minutes scaring the shit out of the two-dozen 18- and 19-year-old students in the...

Letters to the Coaches: Power vs. Heart Rate and More

Hi David I am looking at following the 80/20 ironman training plan (probably level 2) and have downloaded the free Ironman plan.  I have a few questions: 1. When cycling I noticed I can keep in zone 1-2 for heart rate but when I analyse I see my power is spread more...