Why does my long jumper land shorter than their speed says they should?
A fast approach and a short landing usually means the speed never converted at the board, not that the athlete stopped being fast.
A long jumper can look genuinely fast down the runway and still land in a spot that does not match that speed. It is one of the more confusing things to watch from the stands, because the part that looked good, the run, is not the part that went wrong.
Distance is speed, turned into an angle
Horizontal speed only becomes distance if the takeoff sends a useful share of it upward as well as forward. Too flat and the jumper never gets off the ground long enough to travel. Too steep and the speed gets spent fighting gravity instead of covering distance. The approach can be excellent and the number on the tape can still be ordinary if the last step gets that trade wrong.
What is usually behind it
- A flat takeoff, where the jumper runs off the board rather than driving up off it, keeping speed but losing height and flight time.
- A collapsed trunk at takeoff, leaning forward into the jump instead of staying tall, which shortens the time in the air even when the leg does its job.
- A weak block off the penultimate step, so the hips never rise enough for the takeoff leg to do anything with.
- A landing that gives distance back: feet not reaching forward, or the jumper sitting down early in the pit.
The first three cost distance in the air. The fourth costs distance that was already earned, on the ground, after the jump is essentially decided.
What the long jump setting actually shows
The Film Room checks takeoff angle against an 18 to 22 degree band, hip rise as a share of the athlete's height, and how the trunk and arms move through the approach. A jumper whose takeoff angle sits inside that band and whose hip rise looks healthy, but who is still landing short, is very likely losing distance in the landing rather than the jump itself. That is worth knowing before anybody spends a month drilling the approach.
A single side-on camera cannot tell you how fast the athlete was actually moving at the board, only how the body moved once a known distance was marked on the runway. It cannot read the measured distance itself either: that number still comes from the board and the tape, not the video.
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Related
Why is my triple jumper fast on the runway but short in the pit?
A fast approach that does not turn into distance almost always means the speed is being spent going up instead of out.
Read →Why your long jumper keeps fouling
Three red flags in a row is rarely carelessness at the board. It is a run-up that was never the same length twice.
Read →How long should a long jump run-up be?
Long enough to reach the speed the athlete can still take off from, and not one stride longer.
Read →