Overcut

How it works

When a rival pits first, they spend the next two or three laps bringing cold rubber up to working temperature. During that window, an overcutting car continues at race pace in clean air and can match or beat the rival's out-lap times^[1]. The cumulative gain plus the long staying-out driver's later pit stop can be enough to leapfrog the rival.

When the overcut beats the undercut

• The compound the rivals are running on has weak warm-up characteristics or thermal degradation that punishes the out-lap^[2].
• The track is hard on tyres at the start of the stint (graining-prone circuits like Imola or Monaco).
• The car ahead has good clean-air pace and is not stuck behind backmarkers.
• Track temperature is low, lengthening warm-up.

When the overcut fails

• The car staying out hits its tyre cliff before pitting (cliff erases the staying-out advantage in one lap).
• Traffic interrupts the long stint and the staying-out driver loses time to slower cars.
• The compound has strong warm-up (Softs in summer heat), in which case the undercut wins instead.

Teams known for using it

Mercedes has historically been associated with overcut calls on tracks where hard compounds need to come into the working window, though every team uses both strategies depending on conditions^[1].