Distance-bound vs Time-bound sessions

At the beginning phase 0, I made a small but important mistake:
I bound my sessions to distance instead of time.

That meant:

• Same route
• Same distance
• Try to complete it every session

It felt logical: predictable, repetitive and comfortable, but it was the wrong choice for this stage.

Distance-bound sessions

What it looks like

• Fixed route
• Fixed distance
• Session ends when the distance is completed

When it makes sense

• When fitness is stable
• When pace is predictable
• When recovery is reliable
• When training goals are performance-oriented

Problems at this stage

• Bad days feel like failure
• Fatigue or poor sleep immediately show up as “slowness” and extra time on feet
• Heart rate control becomes harder
• Sessions quietly turn into effort tests

Early on, distance turns variability into pressure.

Time-bound sessions

What it looks like

• Fixed duration (e.g. 30–33 minutes)
• Distance varies naturally
• Session ends when time is up

Why it works better early

• Effort stays bounded
• Heart rate is easier to control
• Progress shows up naturally as longer distance
• Bad days are still valid sessions

Time-bound sessions make it easier to:

• Show up consistently
• Stay calm
• Avoid turning every run into a benchmark

What I changed

I switched to:

• Fixed time
• Same route
• Let distance increase on its own

Nothing else changed.

The sessions immediately felt:

• More predictable
• Less mentally demanding
• Easier to repeat day after day

Rule of thumb (for me)

• Early phases → time-bound
• Later phases → distance-bound
• If motivation or recovery is fragile, default to time

At this stage, I’m not training distance.
I’m training showing up.