Most lost high jump performance comes down to a small handful of mistakes. The same ones show up across HS, club, and college athletes. Each one has a clear look on video. Here are the ones the AI flags most often, with the fix for each.
Trail leg drop in hurdles. Takeoff under the top hand in pole vault. Reaching at the board in long jump. The same errors show up in athlete after athlete, and they look the same on video. The AI catches them in the same frame a coach would.
An error in phase 4 of high jump usually has its root in phase 2. Fixing the symptom doesn't help. AI traces the chain so you fix the actual cause, not the visible effect.
Every flagged mistake comes with the drill that targets it specifically. No generic drill list, no busywork. The drill that fixes a takeoff issue isn't the drill that fixes a release issue.
Read about mistakes, then upload a clip and see if you have any of them. AI runs the same checks a coach would and tells you in plain language what's happening, plus what to do this week to fix it.
Follow up in chat and ask questions. The AI remembers your analysis and speaks the language of high jump coaching.
Each fault below is described two ways: how it looks on video (so you can recognize it on your own clips) and the drill or cue that fixes it. AI form check identifies these patterns in the same frames a coach would.
You slow down in the last 2-3 strides instead of accelerating through the curve, flattening your takeoff.
Curve-running drills with a stopwatch, compare penultimate-step times across attempts to catch the deceleration.
Your takeoff foot lands within 2 feet of the uprights, cramping the clearance and causing the athlete to drift into the bar.
Extend the approach by a half-step and re-measure until the takeoff is 3-4 feet from the uprights.
You begin the flop arch before clearing the vertical of the bar, reducing peak clearance and risking a back-bar hit.
Bar-arch drills from a box, focus on initiating the arch at peak height, not ascent.
These drills come from coaching practice (Dahlman, Petrov-Bubka tradition, Slippery Rock camps). Each card lists the phase it targets, the method, what to watch for, and a prescribed rep volume.
Approach shape, lean, consistent start mark.
Run the full J-curve approach without jumping. Mark every penultimate-step landing.
Drift on early strides; insufficient lean.
CoM lowering in the penultimate step.
From a 4-step approach, exaggerate the penultimate-step depth. Low penultimate, high takeoff.
Penultimate same height as other steps.
Free-leg knee drive at takeoff.
From a single step, drive the free knee high while jumping. No bar.
Free leg passive (no swing).
Hip-thrust arch over the bar.
From a low box, drop back into a back arch over a soft surface. No bar.
Arching too early; head leading instead of hips.
Full sequence at lower complexity.
From 5 steps (curve only), full takeoff and clearance at low height.
Skipping the penultimate setup.
Vertical drive isolation.
From a low box, drive free leg up, jump as high as possible. No bar.
Forward jump instead of vertical.
Primary sources behind the numbers and methods on this page.
Five common questions about high jump that come up in coaching.
A directory of every high 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.
