F1 race strategy explained: pit stops, undercut, overcut, tyres and safety cars

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Formula 1 races are often won on the pit wall as much as on track. Two cars of similar pace can finish far apart simply because one team called a stop at the right moment. This guide explains the strategic tools teams use and how to read them as the race unfolds.

The tyre rules that shape every race

Three dry compounds are chosen for each event from Pirelli's range, labelled soft, medium and hard, and marked with red, yellow and white sidewalls.
Softer tyres are faster but wear out sooner. Harder tyres are slower over one lap but last longer.
In a dry race, every driver must use at least two different dry compounds. That rule alone forces at least one pit stop.
Intermediate and full wet tyres are used when the track is damp or wet, and once they are fitted the two-compound rule no longer applies.

The cost of a pit stop

A stop itself, with the car stationary, is usually done in a few seconds. The real cost is the time spent driving down the pit lane at its speed limit compared with staying out on track. That loss varies by circuit and is often around 20 seconds. Strategists work out where their driver would rejoin, ideally in clear air rather than behind slower cars.

One stop or two

A one-stop race saves pit lane time but asks the tyres to last longer, so the driver must manage them.
A two-stop race spends more time in the pits but allows harder pushing on fresher tyres.
Tyre degradation decides which is faster. Hot track temperatures, abrasive surfaces and heavy fuel loads all wear tyres faster.

The undercut

The undercut is the most common strategic attack.

The chasing car pits first and takes fresh tyres.
On new rubber, it laps faster than the leader still on worn tyres.
When the leader pits a lap or two later, the chaser may have gained enough time to come out ahead.

The undercut works best when fresh tyres are much quicker than old ones and when tyres warm up quickly.

The overcut

The overcut is the reverse. The car ahead in the pits stays out longer, hoping its worn tyres are still competitive while the rival struggles with traffic or cold new tyres. It works when tyres take time to warm up, when the pitting car rejoins in traffic, or when the track is drying and the next set is a better choice.

Safety cars and virtual safety cars

A safety car bunches the field behind a road car while marshals clear an incident. Everyone slows, so a pit stop costs much less time. That is why you often see a rush to the pits the moment one is called.
A virtual safety car keeps cars in place but forces everyone to drive to a slower set lap time. A stop is also cheaper, though usually not by as much.
A red flag stops the session completely. Teams may change tyres while the cars wait in the pit lane, which can hand a free stop to drivers who had not yet pitted.

Luck plays a part here. A driver who pitted a lap before a safety car can lose a big lead to rivals who stop for far less.

Other strategic tools

Team orders. A team may ask one driver to let the other through, or to hold up a rival.
Energy management. Under the 2026 rules, deciding when to use battery energy is another strategic layer.
Weather calls. Switching to or from wet tyres at the right lap can be worth more than any dry-weather plan.

Reading the race as a viewer

Note which compound each car started on.
Watch the gap between cars before and after the first stops.
When a safety car appears, look at who has already stopped and who has not.

Got a strategy call you want explained? Ask about it in the comments.