DRS (Drag Reduction System)

How it works

When a driver presses the DRS button inside a DRS zone, an actuator opens the upper rear wing flap. The reduced rear wing area cuts aerodynamic drag, raising top speed by roughly 10 to 15 km/h on most circuits^[2]. The flap closes automatically when the driver brakes or releases the throttle for the next corner.

Activation rules

• DRS is only available in race-marked zones, designated by the FIA per circuit^[1].
• A chasing driver must be within one second of the car ahead at a detection point before the zone.
• DRS is not available for the first two laps of a race or after a safety car restart.
• DRS may be disabled in wet conditions for safety.

DRS detection points and zones

Each DRS zone has a detection point upstream of the zone itself. The one-second gap check is taken at that detection point, not continuously. If the chaser is within one second at the detection point, the driver gets DRS use through the entire downstream zone, even if the gap grows.

Tactical implications

• A driver can deliberately back off before a detection point to drop a chaser out of the one-second window, denying them DRS.
• A faster driver near a slower car may "give back" position to wait for the next DRS zone and attack with better speed.
• A DRS train (multiple cars within one second of each other) cancels out because everyone has DRS on the same straight, neutralising the advantage. See drs-train.

Future of DRS

The 2026 technical regulations introduced movable aerodynamics on both the front and rear wings, with separate "X-mode" and "Z-mode" configurations for cornering and straight-line speed. DRS as it has existed since 2011 is being phased out in favour of this broader active aerodynamics framework^[1].