Today, I had a scheduled Training Peaks workout that was supposed to be an hour and 19 minutes long. The automatically imported workout in Zwift was 9 minutes longer.
In Training Peaks, there were three segments that looked like this:
Repeat 3 times
Tempo
1 minute @ 80%-85% of FTP
In the corresponding Zwift workout, these segments became 3 * Over/Under intervals with 1 minute “over” at 82% of FTP and 1 minute “under” at 82% of FTP.