20-19-18-…-1. for time

(cal) Row
(cal) SkiErg
(cal) Air bike

Time cap. 45:00

Flow. 20 (cal) of each machine – 19 (cal) of each machine – etc. until you run out of time or finish 1 (cal) of each machine
Option. You can start at lower calories (e.g. 18) if needed to finish within the time cap. This is an opportunity to make an estimate of your capacity and see how it holds up.