How Far Apart Can You Place Wireless Sprint Timing Sensors?

MotionTrials lists 2 m as the minimum distance and 100 m as the maximum distance between Sprint sensors. Its specified detection field is 0.25–1.0 m. Sensor spacing is the distance along your test lane, while the detection field describes the area each sensor can cover.

Where do the sensors go for a 20 m sprint?

• Start and finish. Measure 20 m from the start detection point to the finish detection point. This gives you one elapsed time.

• Start, split and finish. Place detection points at 0 m, 10 m and 20 m. The midpoint lets you see where in the measured interval a time changed.

• Start mark and run-out. Mark where the athlete stands behind the first detection point, then leave space after the finish for slowing down. Record the start offset separately from the timed distance.

How do you check whether the layout works?

Position and orient each sensor according to its instructions. Keep waiting athletes away from the detection area. Do a test pass in the running lane and check that each expected reading appears in order. Repeat the check after moving equipment or changing venues. For the operating limits and detection field, see the MotionTrials technical specifications.

Do you need a third sensor?

Two detection points are enough for a single start-to-finish result. Add a third when the training decision depends on a split. Compare the Sprint kits and included sensors and use the 0–10–20 m sprint setup as a starting point for your lane plan.

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