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Drag Racing Reaction Time Test

Time the Christmas tree. Leave too early and you foul out.

MEASURES
Anticipation
INPUT
Click / tap
TIME
~40 sec
How the test works

Why this isn't a reaction test

The Christmas tree drops on a fixed, repeatable cadence — so the skill isn't reacting to a surprise, it's learning the rhythm and pre-empting the green. A perfect 0.000 light means you were already moving as the bulb lit. That's anticipation, and it's exactly why the best drag racers post reaction times far below the ~100 ms human floor.

The Pro tree flashes all three amber bulbs at once with green 0.4 seconds later. The Sportsman tree steps the ambers down half a second apart, giving a longer, easier beat to read. Leave before the green bulb lights on either tree and it's a red-light foul — the round voids and replays, and it never counts toward your five.

For the opposite skill — a truly unpredictable signal you can't time — try the F1 Start Lights test, where the hold before lights-out is random.

How your score grades
Perfect light
under 80 ms
You launched on the bulb — championship timing
Great light
80 – 199 ms
Reading the tree well and leaving clean
Good light
200 – 349 ms
Solid, but reacting more than anticipating
Late
350 ms +
Waiting to see green rather than timing it
Questions
What is a perfect light in drag racing?
A 0.000 reaction — leaving the line at the exact instant the green bulb lights. Because the tree runs on a fixed cadence, top racers anticipate it and routinely post reactions far under the ~100 ms human reaction floor.
What counts as a red light here?
Leaving before the green bulb lights. On a real track that is an automatic loss; on this test it is a foul — the round voids, the tree re-stages, and it does not count toward your score.
What's the difference between Pro and Sportsman?
The Pro tree flashes all three amber bulbs at once with green 0.4s later — a tight, fast window. The Sportsman tree steps the ambers down half a second apart, giving a longer, more readable beat.
Is this a reaction test or a timing test?
Timing. The cadence is predictable, so you win by anticipation, not raw reaction. For a true reaction test with an unpredictable signal, try the Classic or F1 Start Lights tests.