The double-under - two rope passes per jump - is CrossFit's coordination gatekeeper: trivial for those who have it, maddening for those who don't. The skill is wrist-driven rope speed married to a relaxed, consistent bounce; the moment shoulders and arms take over, the rope slows and the trips begin. Max unbroken double-unders measures the automation of the skill, and big sets (100+) mean the movement costs you almost nothing inside workouts like Annie - where it appears 150 times.
| Level (Reps) | Men | Women |
|---|---|---|
| beginner | 0-5 | 0-5 |
| novice | 20 | 20 |
| intermediate | 50 | 50 |
| advanced | 120 | 110 |
| elite | 250+ | 230+ |
Max unbroken reps.
Where does your Double Unders land?
Log it once and the app places you on this table automatically, then tracks the trend.
Fix the bounce first: a steady mid-height jump with pointed toes, same rhythm with or without the rope. Spin from the wrists with elbows pinned near the ribs - wide arms shorten the rope and cause 90% of trips. Breathe on a pattern (many use one breath per 5-10 reps) or sets will end from oxygen, not skill. When you trip in a max attempt, the reset matters: two singles, then back in. Rope length: handles to armpits is the standard starting point.
Progression: single-unders with consistent rhythm, power jumps (higher single), single-single-double patterns, then small unbroken double sets growing weekly.
Log every result, see your progress over time, and know exactly where you stand.
Free on iOS and Android. No account needed to start.