Our own, built from the ladder's rungs and the drill library. Not benchmarks: nobody else posts these.
For the first few doubles: the double-under jump without a rope, then with one, five times over.
For time5 × 1050 double unders
5 rounds for time of: 10 double unders 10 penguin taps
As written once 5 in a row are yours (rung 8, Ten). A dulike original.
The Ten rung, every minute: ten in a row while the clock and your lungs argue with you.
EMOM 10 minutes10 × 10100 double unders
Every minute on the minute for 10 minutes: 10 double unders
As written once 5 in a row are yours (rung 8, Ten). A dulike original.
Sets of twenty-five with singles as the rest: the Twenty-five rung, made boring on purpose.
AMRAP 8 minutes2525 double unders a round
As many rounds as possible in 8 minutes of: 25 double unders 50 bouncy singles
As written once 10 in a row are yours (rung 9, Twenty-five). A dulike original.
A hundred-rep chipper: one number, one clock, every trip on the rope counted against you.
For time100100 double unders
For time: 100 double unders
As written once 25 in a row are yours (rung 10, Fifty). A dulike original.