Strategy · Updated for 2026
The F1 pit window explained
How teams identify the range of laps in which a planned stop is likely to produce a useful race outcome.
Quick answer
A pit window is the changing range of laps when a stop can achieve the strategy's goal: reaching the finish on the next tyres, covering a rival, avoiding traffic or rejoining in a useful gap. It is a decision range, not a fixed line on the circuit.
Tyre feasibility
The next set must be capable of completing the intended stint at competitive pace. Degradation, compound choice and expected weather determine the earliest sensible stop.
The rejoin calculation
Strategists subtract the expected pit-lane time loss from the car's track position and project where it will emerge. A gap in traffic can be worth more than extending the current tyres.
A moving target
Rival stops, yellow flags, Safety Cars and changing pace continually alter the answer. Teams update the window lap by lap instead of following a single pre-race number.