Time attack explained
Time attack is a competition where drivers share the track but are ranked only by their single fastest lap. There’s no wheel-to-wheel racing; you find a gap, warm the tires on an out lap, then push for one or two hot laps. Classes group cars by modifications or power-to-weight, so you compete against similar machinery.
- Your best single lap is your result. Consistency matters less than one clean lap.
- The out lap prepares tires and brakes and finds you a gap in traffic.
- Tires usually peak for only a lap or two, so plan when you push.
- It’s a step up from HPDE: check the organizer’s experience and safety-equipment rules.
Formats
The most common format is open-session time attack: several cars on track in timed sessions, with your fastest lap of the day counting. Some events run a limited number of timed laps per session, or a final shoot-out for the fastest drivers in each class.
Other variants send cars out at intervals so each driver has clear track, or run one car at a time on short circuits. Formats differ a lot between organizers, so read the supplementary rules for each event.
Classes
Classes typically group cars by modifications (street, modified, unlimited), by drivetrain, by tire type or by a power-to-weight figure. Some use a points system where each modification costs points.
Tire rules are often the biggest factor. A treadwear rating limit or a tire category can change lap times more than many engine modifications. Before you build anything, find the class that fits the car and read its rules carefully.
Out lap, hot lap, cool-down lap
- 1Out lap: build tire and brake temperature progressively and look for a gap. Many drivers slow down on the out lap to let traffic ahead clear, without disrupting cars behind.
- 2Hot lap: one or two committed laps at the limit you’ve built up to. A live delta shows straight away whether the lap is still on.
- 3Abort if needed: if you catch traffic or make a mistake, back off, point the car by and reset rather than forcing it.
- 4Cool-down lap: drive gently with light braking to bring temperatures down before you pit.
Delta compares where you are now with where you were on your reference lap at the same point of the track. Negative (green) means you're ahead.
Tire management
Tires have a temperature window where they grip best. Too cold and they slide; too hot and they go greasy and lose grip. On many tires the best lap comes on the first or second hot lap, before pressures and temperatures climb too far.
Tire pressures rise as the tire heats, often by several psi. Set cold pressures so they reach your target hot pressure at the moment you want to push, and check them as soon as you come in. Write down cold and hot pressures for every session so the next event starts from data, not memory.
FAQ
Do I need a race license for time attack?
Usually not a full competition license, but many organizers require HPDE experience or an advanced or solo sign-off. Safety equipment rules can be stricter than HPDE. Check with your organizer.
Is time attack racing?
It’s competition, but not wheel-to-wheel. You compete against the clock, and passing still follows the event’s rules.
How many hot laps should I do?
It depends on the tire and the car. Many drivers do one or two hot laps and a cool-down, then pit to reset. Watch whether your lap times fall away as temperatures rise.
- Racing flags explainedWhat every racing flag means at track days and club events: green, yellow, red, black, the mechanical black flag, debris, passing, white and checkered.
- What is autocross?Autocross is a timed run, one car at a time, through a course marked by cones in a parking lot or airfield. How classes, runs and course walks work.
- Passing rules and point-bys at track daysHow passing works at track days: point-bys, passing zones, run-group rules, mirror habits and the etiquette that keeps everyone safe.