F1 Reaction
Inspired by a real Formula 1 race start. Five red lights turn on one by one; react the instant they go out.
Click anywhere on the panel when the lights go out
In real F1, drivers react to lights-out in 100–300ms. The five-light sequence builds anticipation and tests your ability to react to the absence of a stimulus rather than its appearance, a harder cognitive task.
A false start (jumping the lights) incurs a penalty, just like in a real race.
| 👁️ | Focus | Sustained attention to the lights is crucial. |
| ⏱️ | Anticipation | Your brain predicts timing, but the delay is random. |
| 😴 | Sleep | Fatigue slows reaction by 30–80ms. |
| ☕ | Caffeine | Can improve reaction by 5–15ms. |
F1 Reaction Time Test
The F1 Reaction Test simulates the start of a Formula 1 Grand Prix. Five red lights illuminate sequentially at one-second intervals. After all five lights are lit, they go out at a random time interval (between 0.2 and 3.0 seconds). The moment the lights disappear, you must click or tap as quickly as possible. This test measures your anticipatory alertness and visual response rate.
How to Take the F1 Reaction Test
- Click the Start Test button to begin the lights sequence.
- Watch the five red lights turn on one by one.
- Wait for all lights to go dark. Do not predict!
- Click or tap anywhere on the screen the exact millisecond the red lights disappear.
- Repeat for 5 rounds to calculate your final median reaction time. Jumping the start counts as a false start!
What is a Good F1 Reaction Time?
Professional Formula 1 drivers have median start reaction times between 150ms and 200ms. On a real F1 grid, drivers must react to the lights going out while managing clutch control and tire spin under high physical stress. For average gamers and keyboard/mouse users, a reaction time below 220ms is considered fast, while most healthy adults average around 260ms.
Why the F1 Start Sequence is Unique
Unlike standard visual reaction tests where you wait for a green color block, the F1 test requires you to react to the disappearance of a stimulus (the lights turning off). This creates a different cognitive challenge because your brain must maintain sustained anticipation during the sequence and react when the bright visual pattern suddenly vanishes, rather than reacting to a sudden color flash.
F1 Reaction Test FAQ
How fast do F1 drivers react?
F1 drivers typically react in about 160ms to 180ms. Famous starts like Valtteri Bottas's 2017 Austrian Grand Prix start clocked in at a legendary 201 milliseconds, which was so fast that stewards had to investigate if he jumped the start (he didn't!).
What happens if I click early?
Jumping the lights before they go out triggers a false start. In our test, a false start counts as an invalid trial and incurs a time penalty, just like a drive-through penalty on a real race track.
Does device hardware latency affect F1 start times?
Yes. Visual display delay and touch digitizer response times add latency. To address this, reflexbench automatically calculates a Normalized Score (subtracting 70ms for touchscreen inputs and 10ms for ≤60Hz screen refresh lag) to isolate and display your true neurological reflex speed.