Perfect form in long jump isn't about looking smooth. It's about hitting the targets coaches measure, phase by phase. Here's what perfect long jump form looks like at each phase, what coaches grade for, and how the AI compares your form to the standard frame by frame.
Each phase of long jump has a target. Takeoff angle. Body lean. Foot strike. Release height. "Perfect" means hitting the target on each phase, in order. The AI grades against the targets, not against how the rep looks.
A frame can look ugly and still work. A clean-looking frame can still cost you. The AI grades the mechanics, not the look. You stop chasing pretty form and start chasing the targets that matter.
Don't compare yourself to a pro's highlight reel. Compare your phase 2 to the standard for phase 2. The AI does this for you and tells you the gap, frame by frame.
Upload a clip, AI grades each phase against the form standard, and tells you the specific gap to close. Not a vague "work on your technique," a concrete read on which target you're under and by how much.
Follow up in chat and ask questions. The AI remembers your analysis and speaks the language of long jump coaching.
Each phase has a coaching cue, a measurable target, the frames a coach pauses on, and the failure mode AI flags most often. Use it as a self-diagnostic checklist on every video.
14-22 strides building from drive to controllable max velocity. Speed at the board is the single biggest predictor of jump distance (r=0.86 vs distance in elite women).
Second-to-last step lowers the CoM ~9 cm to load for the takeoff drive. The penultimate step is 12.2% longer than the last step in elite jumpers.
Foot grounded on the board with active strike (not a reach). Free leg drives knee high; arms swing up. The optimum takeoff angle is ~21 deg for elite men.
Hang: body extended, arms up. Hitchkick: cycling motion (1-2 cycles). Sail: simplest, both legs forward (HS-level). Choice depends on hang time and skill.
Heel lands first, ahead of CoM. Hips slide past the heels (no fall back).
The numbers coaches grade against. Levels run from beginner through elite, your AI form check compares your reps to the level above you.
Primary sources behind the numbers and methods on this page.
Five common questions about long jump that come up in coaching.
A directory of every long jump page on the site, from broad analysis tools to specific phase deep-dives. Each entry points to a focused write-up.
Download the app. Film a rep. See what the AI sees. Free first analysis, no card, no account required.
