Pull to the top of a chin-up and hold with your chin over the bar, using the grip or assistance your tier allows. Stay tight and keep breathing. Hold as long as you can.

Declare your tier before starting. Chin clearly over the bar for the whole hold — the timer stops when your eyes drop below it. No resting your chin on the bar. Longest hold at your tier wins; a higher tier always outranks a lower one.

Difficulty tier + hold time