When you miss a workout
What to skip, what to move, and why trying to make up missed training is usually the thing that does the damage.
- Missing one run changes almost nothing. Trying to make it up is what causes problems.
- Rejoin the plan where the calendar is, not where you left off.
- If you miss more than a week, go back a week rather than forward.
- When something has to give, protect the long run and the easy running before the quality session.
Every plan is written for a runner with no work, no family, no illness and no weather. You are not that runner, and the plan already assumed you would miss things — it just did not say so.
The rule that covers nearly all of it: do not make it up.
Missing one run
Almost nothing happens. A single session is a small fraction of a training block, and one missed easy run is genuinely invisible in the outcome.
What is not invisible is doubling up to compensate: two quality sessions close together, or a long run squeezed against a hard day, raises load at precisely the moment your week has already been disrupted. That is where the injuries come from — not from the missed run.
Missing several days
Rejoin the plan where the calendar now is, not where you stopped. If you missed Tuesday and Wednesday and it is now Thursday, do Thursday's session — at a slightly reduced volume if the gap was because you were ill.
Missing a week or more
Miss up to a week and rejoin where the plan is. Miss more than a week and go back roughly one week for every week missed, up to a couple. Longer absences — a month, or anything that involved injury or illness — are better treated as rebuilding a base than as resuming a plan.
What to protect when the week is compressed
| Priority | Keep | Why |
|---|---|---|
| First | Easy running, at your usual frequency | Frequency and easy volume drive most of the adaptation |
| Second | The long run, shortened if needed | Hardest element to rebuild once lost |
| Third | One quality session, shortened | Maintains sharpness at low cost |
| Drop first | The second quality session | Highest recovery cost per unit of benefit in a disrupted week |
Coming back from illness
Common guidance is that symptoms above the neck — a mild head cold — usually allow easy running, while anything with fever, chest involvement or body aches does not. That is a rough filter rather than medical advice, and it is worth taking seriously in the conservative direction: returning to hard training too soon after a genuine illness reliably extends it.
When you do come back, give it a few easy days before any quality work, regardless of how you feel on day one.
The part that actually matters
Consistency across months, not perfection across weeks. A plan completed at eighty percent produces a better outcome than one followed exactly for five weeks and then abandoned — and the abandoning is usually downstream of trying to make up for a week that was never going to matter.
Common questions
Should I make up a missed run?
Usually not. Adding a missed session onto an already-full week raises the load exactly when you have less recovery capacity than the plan assumed. Let it go and rejoin where the calendar is.
What if I miss a whole week?
Repeat the week you missed rather than jumping to the next one. Going back a week costs a week; going forward a week costs the following block.
How much fitness do I lose in a week off?
Very little from a single week — most of what feels like lost fitness on the first run back is stiffness and the psychological weight of the gap rather than a real change in capacity.
Which session should I protect?
In a compressed week, keep the long run and the easy running, and drop or shorten the quality session. Consistency of easy volume drives more of the outcome than any single hard session.