Average speeds aren't a good indicator unless you use the same route on roughly the same conditions and compare the rides.
If I'm practicing TT drills I typically choose a flat route, or flattish, and use my gps device to record the 'lap' as the tt event and compare the time/speed/etc to past training events to gauge improvement.
Same with hills climb training, intervals, etc.
They are different and the speeds are all going to be different.
Last edited by Kai Winters; 12-17-23 at 08:35 AM.