The Gorby
5 × 5 min at 110% FTP with 5 min at 55%
Collection
Well-known Zwift workouts rebuilt as Garmin workouts: The Gorby (5 × 5 minutes at 110% FTP) and The McCarthy Special (blocks at 100, 112 and 125% FTP). Targets are percentages of FTP, so they run on your Garmin indoors or out. Fit File Forge isn't affiliated with Zwift.
5 × 5 min at 110% FTP with 5 min at 55%
3 rounds: 3 min @ 100% · 3 @ 112% · 3 @ 125%, then 9 min easy
Describe it and it's built for your Garmin — your coach can plan the weeks around it.