A missed run
Skipped Tuesday's intervals? The week reshuffles. You don't double up and you don't carry guilt into Thursday.
Adaptive Running Training Plan
An adaptive running training plan is a plan that changes when your training does. Rutz keeps your race date and phases fixed, then writes each week from the runs you actually completed — so a missed session, a work trip or a bad week bends the plan instead of breaking it.
What is an adaptive training plan?
A static training plan is a calendar. Every session is decided on day one, and the plan assumes you will complete all of them. Miss a few and you are officially behind, with no guidance on how to get back.
An adaptive training plan separates what must stay fixed from what should move. The race date is fixed. The shape of the block — base, build, peak, taper — is fixed. The contents of each week are not: they are decided from your current fitness, your recent load and the days you can run.
Rutz plans one week at a time. At the end of each week it looks at what you actually did, not what was scheduled, and writes the next week from there. A load guard caps how far the new week can jump, so missed kilometres are absorbed gradually rather than crammed back in.
Checklist
What your plan adapts to
Travel
Three days with a hotel treadmill and jet lag is not the week to chase volume. The plan eases off, then picks up when you're home.
Illness or a bad week
Come back with an easier week built from where you are — not from where the calendar says you should be.
A changing schedule
New job, new baby, new shift pattern. Change the days you can run and the week is rebuilt around them.
Ramping too fast
Feeling great and piling on kilometres is how most runners get hurt. The load guard holds the increase to what you can absorb.
Getting fitter
Adaptation works upward too. As your runs show you're stronger, the targets move with you.
Why Rutz
Your plan. Your week.
Most apps hand you a schedule. Rutz hands you a coach that has read every one of your runs.
- 1
A plan written for you, every week
No 16-week PDF. Rutz builds backwards from your race date, then writes each week from the runs you actually did — not the ones you were supposed to do.
- 2
It flexes when life happens
Missed Tuesday? Flying Thursday? Your week reshapes around reality, so one bad day never turns into a broken plan.
- 3
Every run, explained
Finish a run and your coach tells you what it meant — effort, pacing, fatigue, and what it changes about tomorrow. Tracking isn't coaching. This is.
- 4
Works with the watch you already own
Garmin, COROS, Suunto, Polar and more. If your watch syncs to Intervals.icu, Rutz can read it. One sign-in connects everything.
FAQ: Adaptive training plan
What happens to my training plan if I miss a run?
With Rutz, the next week is written from what you actually ran, so a single missed run simply changes the input. You are never asked to make it up by doubling a later session.
Is an adaptive plan less effective than a fixed plan?
No. The principles are identical — progressive overload, mostly easy running, recovery weeks, a taper. The difference is that an adaptive plan keeps applying them to the runner you are this week, which is what a good human coach does.
Does my race date move when the plan adapts?
No. The race date and the training phases stay fixed. Only the contents of each week change.
How often does Rutz update my plan?
Every week. Each new week is written from your completed training, your current load and the days you've said you can run.
What stops an adaptive plan from overloading me after time off?
A load guard. Rutz enforces ceilings on how much your weekly training load can increase, so a comeback is gradual by design.
Your next start line starts here
Rutz is in private beta on iPhone. Join the waitlist and we'll email you when it's your turn.
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