80/20 Endurance
Structured 18 week marathon plans built on running 80 percent easy and 20 percent hard.
Runners who plan by weekly hours rather than weekly mileage
Checked against Matt Fitzgerald’s own pages on August 4, 2026.
About 80/20 Endurance
80/20 Endurance sells structured marathon plans built, in its own words, on the 80 percent easy and 20 percent hard formula practiced by elite athletes. Levels are set by weekly training hours rather than mileage, running from 2.5 to 5 hours at Level 0 up to 5.5 to 10.5 at Level 3. Standard plans are 18 weeks at $49.95 and Norwegian Training versions $54.95, both arriving through TrainingPeaks. Switching levels within a distance is free.
- Levels are set by weekly training hours rather than mileage.
- A level guarantee lets you switch to a different level of the same distance at no cost.
- The company reports more than 250,000 plans sold.
- Two week samples of the full plans are free with a coupon, so you can run the structure before paying.
The plans
| Plan | Weeks | Level |
|---|---|---|
| Level 0, beginner (2.5 to 5 hours a week.) | 18 | Beginner |
| Level 1, low volume (3.5 to 6.5 hours a week.) | 18 | Beginner, Intermediate |
| Level 2 (4 to 7.5 hours a week.) | 18 | Intermediate |
| Level 3 (5.5 to 10.5 hours a week.) | 18 | Advanced |
Ways to get it
Marathon plans
$49.95 per plan
18 weeks, four levels. Delivered through TrainingPeaks; free level switches within a distance.
Norwegian Training marathon plans
$54.95 per plan
18 weeks, at Levels 0 and 1.
Common questions
What does 80/20 mean in training?
It refers to intensity distribution: roughly 80 percent of running time at easy intensity and 20 percent hard. The company describes its plans as based on that formula as practiced by elite athletes.