HOW TO delete a segment from a recording

Oops! After completing a mt bike trail recording, I accidentally ALSO recorded my car trip home. That one extra segment added 50 miles to my data, which ~ who cares ~ but since it’s now logged as the single longest trail recording, it throws off the ‘circle scale’ icon on every other ride I’ve recorded.

All I need to do is delete the last segment, and I think I’m good.