and it didn't help with the race being a caution heavy race with wrecks from failing tires blowing out which this race had mirror the 2008 Brickyard 400, which was infamously known for the tire problems where they had one too many competition cautions and there was more laps under caution then it was green flag racing and there was a red flag in the early part of the race after serveal cars piled up while entering pit road and injuring the rear tire changer of 12 car of Ryan Blaney, who drives for Roger Penske, the man who bought out the IndyCar Series and Indianapolis Motor Speedway, this was the first Brickyard 400 to happen in the Penske era at IMS.
There were 9 cautions total....minus 2 for the stage ends and the original competition caution. So 6 cautions isnt that bad. The race didnt start until 4:15ish CDT which was about an hour after the "scheduled" start time so the fact it ended an hour after the "scheduled" end time on guides (4 hours) means with no lightning delay it would have finished "on time" (in reference to online guides)