plans sold

1% of the purchase price of 80/20 Endurance products are donated to the 80/20 Endurance Foundation Learn More

80/20 Endurance Blog

blog post 4

A Fresh Look at Intensity Zones

By Matt Fitzgerald | June 13, 2021

Anyone who has ever used a piece of cardio equipment at a public gym has some notion of exercise intensity zones. Here’s an example of a chart you might see stuck to an elliptical trainer at your local health club: Athletes scoff at such simplistic, one-size-fits-all guidelines. For starters, they are based on the supposition […]

training to run doubles

You Don’t Have to Be an Elite Runner to Run Doubles!

By Matt Fitzgerald | June 6, 2021

As a runner first and a triathlete second, I am attuned to the differences between the two sports. One difference is that many recreational triathletes think nothing of working out twice a day, whereas very few recreational runners engage in this practice. There is an obvious reason for this difference: Triathletes have three separate disciplines […]

Sonoran Distance Project

78 Days to Chicago

By Matt Fitzgerald | May 30, 2021

If you read my book Running the Dream: One Summer Living, Training, and Racing with a Team of World-Class Runners Half My Age and found yourself wondering what happened on the days not included in the journal-style narrative, here’s your answer! Sort of. What follows is a chapter I wrote for inclusion in the book […]


Every Time Someone Says “Evidence Based” a Kitten Dies

By Matt Fitzgerald | May 24, 2021

Last year I took part in an online roundtable of running experts. I was the only coach in the group; the others were physiotherapists, kinesiologists, and strength and conditioning specialists. Toward the end of the overlong session, when everyone was a little punch drunk, the conversation degenerated into a sour-toned airing of grievances concerning the […]

Triathlon race workouts

3 Top Rules of Speed Training Workouts for Triathlon

By Matt Fitzgerald | May 16, 2021

If the fastest swimming, cycling, and running you do is in races, you’re not training right. Every triathlon training program should include speed work, or efforts that exceed race intensity. Speed work not only changes your perception of race intensity, making it feel more comfortable, but it also enhances fitness in ways that slower training […]

mental health awareness month banner

When I’m Not Okay, I Tell Everybody. Here’s What That Gets Me.

By Matt Fitzgerald | May 10, 2021

Recently I received an unexpected phone call from Travis Macy. If the name is familiar, it’s because you know Travis as an inveterate ultrarunner and adventure racer and author of The Ultra Mindset: An Endurance Champion’s 8 Core Principles for Success in Business, Sports, and Life. I know Travis only slightly beyond this thumbnail bio. […]

safety measures to avoid killing your fellow athletes accidentally

How to Not Accidentally Kill Your Fellow Athletes

By Matt Fitzgerald | May 2, 2021

On September 21, 2015, Cameron Bean was struck and killed by a passing car while running in Blowing Rock, North Carolina. He was 28 years old. I’d met Cam four years earlier while visiting the ZAP Fitness (now ZAP Endurance) compound for a writing assignment. A dead ringer for Conan O’Brien, Cam was a likeable […]

Coach assessing your training plan

How to Turn a “Level 2” Training Plan Into Your Best “Level YOU” Training Plan

By Matt Fitzgerald | April 25, 2021

Training plans are great. If I didn’t think so, I wouldn’t have built a company that sells them! Not a day goes by that I don’t see the proof of the usefulness of training plans in the feedback I see and hear from athletes who have gone from training without a plan or with a […]

Knowledge < Understanding

Knowledge Is Good. Understanding Is Better.

By Matt Fitzgerald | April 18, 2021

Wisdom is the principle thing; therefore get wisdom: and with all thy getting, get understanding.–Proverbs 4:7 The best teacher I ever had was Mark Gould, a sociology professor at Haverford College. I’ll never forget the first meeting of his Foundations of Social Theory class in the fall of 1989. The bearded professor (whose sundry idiosyncrasies […]


The Case for Pragmatism in Endurance Training

By Matt Fitzgerald | April 11, 2021

Among the first books I read after graduating from college (and thereby gaining the freedom to create my own syllabus) was Richard Rorty’s Truth and Progress. It served as my introduction to pragmatic philosophy, and I liked it. According to the Stanford Encyclopedia of Philosophy, “Pragmatism is a philosophical tradition that—very broadly—understands knowing the world […]