IndyCar is about to introduce a new format for the first practice session of each race weekend. The goal of the new rules is to eliminate periods of time when there are no cars on the track. To achieve this, the practice time, which normally lasts just over an hour, will be divided into several sections.
The first 20 minutes of the session will occur as usual, with all drivers registered for the weekend allowed to complete as many laps as they wish. After that time, the field will be divided in half based on the numbers of the pit stalls. Each group will have the track to themselves for 10 minutes at a time.
The two groups will alternate track time continuously throughout the session, with each half of the field having the opportunity to complete laps during their respective designated periods. Although this effectively reduces the available track time for each driver, it is not a major concern for the first practice session.
During the first practice session, drivers often spend a significant amount of time in the pits due to tire limitations and changes made by the teams. As a result, they are rarely at full speed for more than half of the allocated time. This is one of the main reasons for the format change.
By dividing the field in half and alternating when each group makes changes to the car setup, fans can expect to see more cars consistently passing through the track throughout the session. Historically, there have been periods of 10 to 15 minutes where few drivers are actually completing laps after completing a slow installation lap at the beginning of the session.
The new format will be tested during the season-opening session in St. Petersburg on Friday, March 8. Then, the effectiveness of the format will be evaluated to determine if adjustments are needed for future events.