Lesson 6 of 11
The Conversion Run: when to swap a hard session for an easy one
A Conversion Run is a planned quality session that becomes an easy Ground run because of how much capacity you actually have that day. It keeps your rhythm and your aerobic work without adding fatigue.
Available capacity
After reading the four inputs from total cost, a coach decides your available capacity: the amount of productive training stress you can take today without damaging next week's training. The question behind every decision is:
Will this decision make good training next week more likely or less likely?
| Level | Name | What it means |
|---|---|---|
| 5 | Full capacity | All four inputs are favorable. You can run the planned quality session fully. This is less common than most runners assume. |
| 4 | High capacity | One input is slightly elevated. The session goes ahead with a small change, such as slightly shorter or less dense. |
| 3 | Moderate capacity | Two inputs are elevated, or one is high. The quality session may become Control work. You can keep volume, but not intensity. This is the most common state. |
| 2 | Low capacity | Several inputs are elevated. Training continues, because consistency matters, but at Ground only. This is a Conversion Run day. |
| 1 | Very low, rest | Illness, serious sleep loss, an acute life crisis or signs of accumulated breakdown. Rest is load management, not failure. |
Plan for level 5, live at level 3
Most runners and coaches plan as if every day is level 5. Real life runs at level 3 more than any other level. In Athlevo's view, planning for 5 and executing at 3 week after week is the main driver of chronic fatigue and stop-start training.
What a Conversion Run is, and is not
- What it is: Ground running for a suitable duration. It can include 4 to 6 Surge Strides at the end if you finish feeling good, never at the start.
- What it is not: an easy run you picked because you did not feel like working hard.
- The test: if I do the planned session today, will training next week be better or worse? If the honest answer is worse, it is a Conversion Run day.
The decision is the coach's, from a structured load check, not the runner's mood. A runner who converts every hard session because it did not feel right has not assessed their load. They have avoided discomfort.
What counts as evidence
Changes to training should come from things that can be seen or measured:
- A poor sleep trend.
- A raised resting heart rate.
- Soreness that has not settled within 48 hours.
- A steady pattern of mental fatigue.
A feeling that always ends in an easier day is not an assessment. Stress alone never justifies harder training either: a bad day at work is a reason to read your load more carefully, not to run harder.
Missed intensity is not made up
If a Threshold session is missed or converted, it is gone. Athlevo does not squeeze two quality sessions into one week to catch up. The plan moves forward from where you actually are.
What a coach says
Athlevo coaches explain the decision rather than just granting a day off. For example: "Based on your load this week and your sleep, today becomes a Conversion Run, 45 minutes at Foundation pace. This is the right decision for the method, not a step backward. The goal is next week's quality session landing on a recovered system."
The five capacity levels and the Conversion Run are Athlevo's own design.
This lesson is general training education. It is not medical advice. If you are unwell, injured or unsure, talk to a doctor before you train.