In 2025, 10.7% of race starts ended in retirement. In 2026 so far it is 18.7%. That is four cars per race instead of two.
The reliability story of the season has been about Mercedes power units. Mercedes are retiring from 13.6% of their starts, which is below the field average.
Aston Martin are retiring from 45.5%.
The numbers
Every race classification from 2021 to 2026, counting how many starts ended in retirement as a share of all starts. Drivers who never started are excluded from both sides.
