107% Rule in F1 Qualifying: How It Works
Explains the Formula 1 107% rule in qualifying, how the Q1 cutoff is set from the fastest lap, and when stewards can still allow a start.
The 107% rule is Formula 1’s qualifying cutoff: a driver must set a lap within 107% of the fastest time in Q1 to qualify automatically. It exists as a performance and safety threshold, aimed at keeping cars that are too far off the pace from starting the race without further review.
What the 107% rule means
In practical terms, the rule measures whether a driver is close enough to the pace of the field in the first segment of qualifying. Formula 1 uses Q1 because every entered driver is expected to take part in that session under the standard qualifying format, so it provides a common reference point.
A lap that is slower than 107% of the fastest Q1 time does not meet the automatic qualification standard. That does not itself decide grid position for the rest of the field; it simply determines whether that driver has qualified to start without needing stewards to intervene.
How the cutoff is set
The calculation starts with the fastest lap recorded in Q1. Officials take that time and multiply it by 1.07, which produces the maximum time a driver can set and still qualify automatically under the 107% rule.
For example, if the fastest Q1 lap is 1 minute 30.000 seconds, the 107% limit is 1 minute 36.300 seconds. Any driver at or below that figure is inside the threshold; any driver above it is outside the limit.
What happens if a driver misses it
A driver who fails to set a time within the 107% cutoff is not automatically entitled to start the race. Under the rule, that driver may be excluded from the starting grid unless permission is granted after the session.
That matters even if the reason is unusual rather than a simple lack of pace. Mechanical trouble, an on-track incident, red flags, or changing conditions can leave a driver without a representative Q1 lap, which is why the rule does not operate as an absolute ban in every case.
Steward discretion and exceptions
Stewards have discretion to allow a driver to start despite missing the 107% mark. In broad terms, they consider whether the driver has shown sufficient pace in practice or in another relevant session to demonstrate that the car can run at an acceptable speed.
If stewards are satisfied, they can permit that driver to take the start, usually from the back of the grid or another position set by the sporting regulations and any penalties in force. If they are not satisfied, the driver does not start. That combination of a fixed Q1 threshold and case-by-case discretion is what defines how the 107% rule works in Formula 1.