F1 red flags halt sessions for safety during races and qualifying

A red flag in Formula 1 indicates an immediate stop to the session due to unsafe conditions, such as crashes or severe weather. This procedure requires all cars to reduce speed and return to the pit lane. The red flag is the most serious form of intervention from race control, surpassing the safety car or virtual safety car. During red-flag stoppages, repairs can be made, but no refueling or driver changes are allowed. The session's time is extended to compensate for the stoppage unless it occurs too late for drivers to complete a timed lap. Instances of multiple red flags can occur, as seen in the recent qualifying session for the 2025 Azerbaijan Grand Prix, which was halted six times.

• 3:17 AMYahoo Sports — What Does A Red Flag Mean In F1? Stoppages, Restarts And The Rules