Tractor pulls
https://whatsonzwift.com/img/workouts/gcn-sprints-tractor-pulls.png
Microbursts
https://whatsonzwift.com/img/workouts/hunters-challenge-week-3-day-4-microbursts.png
Dynamic TT
https://whatsonzwift.com/img/workouts/timetrials-specific-tt3-dynamic-tt-course-work.png
