The horizontal engine. One maximal two-foot jump for distance — the best single predictor of the first metres of a sprint.
Peak force in a single step, expressed horizontally — the same quality Power measures, turned in the direction you actually run.
Of the six, this is the best single predictor of the first metres of a sprint. Power tells you how much force an athlete owns; the Drive tells you how much of it they can aim forward. Those are different skills, and athletes are routinely strong in one and weak in the other. Someone who jumps high but not far has force they are not getting into the ground behind them — a coachable gap, visible in one jump.
Phone in portrait, side-on, the whole body in frame.
Stand still for two seconds behind the line — the engine sets your take-off point.
One max jump: arm swing allowed, two-foot take-off, drive forward.
Stick the landing — distance runs from take-off toes to landing heels, combine rules.
The engine reads take-off from the toes' last ground contact and landing from where the heels settle, both AR-anchored in world space — no tape measure. Best of three counts.
Calibrated against tape-measured jumps in the field — the offset log is open, and every ranked jump carries its video clip.
The test day, the 15-minute block, and the case that gets the club to pay. The date isn't set yet — join the list and you're first in.
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