Strides

Strides are short, fast-but-relaxed pickups of roughly 10 to 30 seconds tacked onto an easy run. Runsei finds them two ways: from the lap button you press on your watch, and from the speed record of the run itself. It counts them only when it sees at least two, and a stride seen both ways is still one stride.

Not seeing them is never held against you. A run's score does not lose points because a count of strides is missing.