80/20 is without doubt one of the hottest coaching ideas on the market and sometimes the very first thing you’ll see once you begin researching operating plans. However does it work for everybody? Our reply under might shock you.
On a latest episode of the Tread Flippantly Operating Podcastwe chatted with Jonah Rosner of Rosner Efficiency. As a sports activities scientist, Jonah has frolicked working in a lab targeted on endurance physiology, giving him a deep understanding of how the physique adapts to coaching.
All through his profession, he’s labored with quite a lot of sports activities groups earlier than narrowing his focus to operating. His purpose is to use the newest science and expertise in a sensible method to assist runners optimize distance operating efficiency.
We’ve damaged down a few of our dialog under, however be certain that to take a look at the complete episode for the entire deep dive into why 80/20 coaching doesn’t work for everybody.
What does 80/20 imply?
It’s possible you’ll be conversant in the 80/20 coaching idea, particularly should you’ve learn Matt Fitzgeral’s ebook, 80/20 Operating. However let’s check out what it means should you’re new to this coaching model.
The 80/20 idea comes from observational analysis on elite endurance athletes. Researchers began to note a sample:
- about 80% of their exercises have been achieved at a really low depth under their first lactate threshold
- about 20% of their exercises have been accomplished at a really excessive depth, above the second lactate threshold
On the time, this wasn’t a prescribed option to practice. It was merely the best way elite athletes balanced their coaching whereas growing their coaching hundreds.
Retaining nearly all of their coaching straightforward allowed them to handle fatigue, keep away from burnout, and nonetheless embody onerous high quality periods.
Many coaches, together with the RTTF Teaching crew make the most of this common concept of 80% straightforward and 20% something that’s not straightforward to assist steadiness total work load for many athletes. BUT there’s some nuance to this.
Does 80/20 Work for Everybody?
The one factor we frequently lose sight of, particularly because of social media, is that coaching is rarely “one dimension matches all”. And that’s precisely the case with 80/20.
Your coaching quantity, operating historical past, genetics and private objectives all come into play.
For runners who’re already used to a better weekly mileage, just like the elite athletes within the unique analysis, 80/20 might be an effective way to steadiness depth whereas managing fatigue.

However there are additionally instances when 80/20 isn’t the suitable coaching choice.
When you’re solely operating a couple of hours per week, or operating isn’t your important focus, sticking to an 80/20 break up seemingly gained’t work. In that case, you would possibly truly discover which you could veer into 30-35% of your mileage being something from Zone 3 to Zone 5 coronary heart charge (i.e. not straightforward).
That is the place the nuance of the dialogue turns into actually vital!!
Whereas within the unique knowledge we thought of the 20% to be really onerous exercises, for runners chasing a half marathon or marathon PR there must be an honest period of time in that center floor of Zone 3. Due to this the chance exists to do greater than 20% of quantity at depth.
In the meantime should you’re new to operating, getting back from an harm, or rebuilding after time away, your focus ought to be on straightforward operating. Jonah mentioned that 100% straightforward efforts assist to construct sturdiness and decrease the danger of overuse accidents earlier than layering depth in a while.
Can You Practice for a Marathon with 80/20?
TL;DR: 80/20 is a useful guideline, however not a must-follow rule in terms of marathon coaching. A coaching plan ought to be adjusted to your objectives, weekly mileage, coaching historical past, and most significantly, how properly your physique recovers.
Let’s check out the distinction between first-time and seasoned marathoners.
👉First-time Marathoners
Marathon coaching locations lots of stress on the physique, particularly once you’re growing mileage for the primary time.
Crucial purpose isn’t hitting an ideal depth break up; it’s attending to the beginning line wholesome. That always means retaining nearly all of your coaching at a simple effort, constructing sturdiness, and easily getting extra time in your ft.
As your coaching progresses and your physique adapts, you may start including Zone 3 work to assist put together for race day.
However consistency and gradual development matter excess of following a precise 80/20 break up. Straightforward operating permits your physique to deal with the coaching load and get well so you may hold displaying up week after week.
Checkout our newbie marathon coaching plan >>

👉Seasoned Marathoners
Even with expertise beneath your sneakers, 80/20 isn’t a one-size-fits-all rule. Marathon efficiency is determined by extra than simply straightforward mileage, so coaching ought to mirror the calls for of sustaining effort over 26.2 miles.
Straightforward runs help restoration and quantity, whereas tougher efforts at purpose marathon effort (zone 3) assist put together you for race day.
Moderately than boxing your self into an 80/20 break up, seasoned marathoners profit extra from adjusting depth based mostly on quantity, fatigue, and restoration. Typically (not simply with the marathon), flexibility results in higher outcomes than following strict guidelines.
Don’t do greater than you may get well from! Which suggests you will need to dial in sleep and vitamin to even think about going over 20%, however after that you just would possibly reap some massive rewards.
Different Coaching Choices to 80/20
Hearken to the podcast for full particulars and a full understanding of easy methods to work exterior of this paradigm and when it’s going to work greatest.
When you’re pondering 80/20 will not be the best choice for you, listed below are a few different coaching choices that will higher match your objectives.
Pyramidal Coaching
Pyramidal coaching nonetheless facilities on straightforward operating however contains extra moderate-effort exercises than a strict 80/20 break up.
As a substitute of solely straightforward runs and difficult exercises, you spend extra time within the center zones, like Zone 3, which might higher put together your physique for race day with out including further fatigue.

Maffetone Methodology aka Low Coronary heart Price Coaching
When you’ve been right here some time, you realize that is the Low Coronary heart Price coaching that Coach Amanda talks about the entire time.
The Maffetone Methodology retains all your exercises under your max MAF coronary heart charge, permitting you to construct a robust cardio base earlier than transferring into one thing like 80/20 coaching.
It’s easy in idea, nevertheless it does require lots of endurance, particularly within the first few weeks.
Slowing down is a part of the method, and sticking with it lets you really perceive what a simple tempo ought to FEEL like vs. all the time relying in your watch.
Need to give it a strive? Take a look at our Low Coronary heart Price course with a number of plans that will help you by way of the method.

Okay, that was lots of info and possibly not what you have been anticipating to listen to about 80/20 operating. It’s reminder to perform a little extra analysis, particularly on these sizzling subjects you see on social media.
To take heed to our complete dialog about 80/20 coaching with Jonah, you’ll have to go to the Tread Flippantly Operating Podcast.
