IndyCar is set to introduce a new format for the first practice session of each race weekend. The aim of the new rules is to eliminate periods of time where there are no cars on track. In order to achieve this, the practice time slot, which is typically just over an hour long, will be divided into multiple sections.
The initial 20 minutes of the session will run as usual, with all drivers entered for the weekend allowed to complete as many laps as they wish. After this time, the field will be split in half based on their pit stall numbers. Each group will then have the track to themselves for 10 minutes at a time.
The two groups will alternate track time seamlessly throughout the session, with each half of the field being given the opportunity to turn laps during their designated timeslots. While this effectively reduces the amount of track time available to each driver, it is not a major concern for the opening practice session.
During the first practice session, drivers often spend a significant amount of time on pit road due to tire limitations and the team’s crew making changes. As a result, they are rarely at full speed for more than half of the allotted time. This is one of the main reasons for the change in format.
By splitting the field in half and alternating when each group makes setup changes, fans can expect to see more cars consistently speeding past throughout the session. Historically, there have been periods of 10 to 15 minutes where very few drivers are actually turning laps after completing a slow install lap at the start of the session.
The new format will be tested during the season-opening session in St. Petersburg on Friday, March 8. Afterward, the effectiveness of the format will be evaluated to determine if any adjustments need to be made for future events.