3 rounds for time:
21 Burpees
18 Pull-ups
15 Pistol Squats
250m Row or 0.4/0.3mi bike*

*must do each erg at least once
post finish time and any scaling
Time cap: 20 minutes

Intended Stimulus
We have a 15-20 minute time domain here with a 20 minute strict time cap. Scale the 21 burpees to 15 or 18 if they take longer than 90 seconds. The pull-ups should go in 3 sets MAX. The pistols will be a bit of a wild card, but around 90 seconds for the 15 reps is a good target. There are many scaling options for the pistols. You will get exactly what you need and exactly what is appropriate for you. 🙂