A 20-minute AMRAP: one countdown, twenty minutes on the clock. You repeat your chosen circuit of movements as many times as you can while the timer runs, counting your rounds, until it reaches zero and calls time.
It is the classic AMRAP cap — long enough that pacing decides the score, and the length of some of the best-known benchmark workouts. Hold a steady, repeatable pace from the first round to the last rather than sprinting and stalling. The timer is a single countdown; you supply the circuit. Open it in the editor to set a different cap.