What tyre degradation is
Tyre degradation is the process by which a racing tyre loses performance over the course of a stint. It is not the same as tyre wear — wear is about how much rubber is physically removed from the surface. Degradation is about how the tyre's ability to generate grip changes over time.
In F1, degradation is the single most important factor in race strategy. A car that degrades its tyres slowly can run longer stints, pit fewer times, and gain positions during the pit stop phase. A car that degrades quickly must pit more often and may lose time even if its raw pace is faster.
What graining is
Graining occurs when the tyre surface becomes rough and uneven, like sandpaper. It happens when the tyre slides slightly under cornering forces, causing small pieces of rubber to peel off and then stick back onto the surface in a disorganized way. The result is a tyre that feels harsh and inconsistent to the driver.
Graining is most common in cold conditions or when a car's setup is not well balanced. A car with too much front wing relative to the rear will grain the front tyres. A car with too much rear wing will grain the rears.
What blistering is
Blistering is more severe than graining. It occurs when the internal temperature of the tyre rises so high that the rubber literally boils from the inside, creating bubbles that burst and leave craters on the surface. Blistering is caused by excessive heat buildup, usually from pushing too hard on a tyre that is already near its thermal limit.
Blistering is most common on circuits with long, high-speed corners that load the tyres heavily — places like Silverstone's Maggotts-Becketts-Chapel or Suzuka's 130R. Once a tyre blisters, the damage is permanent and the performance loss is significant.
How teams manage degradation
Teams manage degradation through setup, driving style, and strategy. A softer suspension setup can reduce the peak loads on the tyres, reducing degradation. A driver who is smooth with their steering and throttle inputs will degrade tyres more slowly than a driver who is aggressive. Strategically, teams can choose to run a two-stop strategy on a circuit where degradation is high, accepting the time loss of an extra pit stop in exchange for consistently faster lap times.
Why degradation decides races
In the 2026 era, with lighter cars and different tyre compounds, degradation patterns are different from previous years. But the fundamental principle remains: the team that manages its tyres best wins the race. A car that is two seconds per lap faster in theory but degrades its tyres in 10 laps will lose to a car that is slower but can run 20 laps on the same set.
That is why F1 is often described as a tyre management competition disguised as a motor race.