DNF

Jenson Button blows up his (Honda) engine 2006 Australian F1 GP and DNF's

DNF stands for "Did Not Finish." In Formula 1 racing, it is a term used to indicate that a driver did not complete the race. This can happen for a variety of reasons, such as an accident, mechanical failure, or disqualification.

A DNF will result in the driver receiving no points for that race, and not being counted among the finishers. It is an important statistic in F1 racing as it shows how reliable and consistent a driver and their team are in completing the race.