Each interval in a CicloZone class has a target zone. Whether the interval is completed depends on how well you executed it.
How the calculation works
For each interval, the app considers:
Zone intensity — were you in the target power zone?
RPM — were you at the target cadence range?
Riding position — seated or standing as specified.
Duration — how long you held it.
Performance outcomes
You can finish each interval in one of three ways:
Match — at target. Counts as completed.
Overperform — above target.
Underperform — below target. If the deviation is large, the interval is marked missed.
What's excluded
Warm-up and cool-down intervals are not counted.
Where you'll see missed intervals
In your post-ride analytics, the Missed Intervals section shows the number not completed within tolerance, out of the total in the session.