With a running clock:
1 Pull up the 1st minute , 2 pull ups the 2nd minute, 3 pull ups the 3rd minute and so on until you can not complete
the required number of pullups in that minute.
*If you can not do pullups do ring rows. (No bands for this)
*The reps can be broken into sets, you just need to complete the required reps for that set within the minute.