The fourth weather-related red flag of the day came after lap 138 of a scheduled 200. Busch was leading at the time, and he was declared the winner after heavy rain soaked the track.
With the rain approaching, Kyle Larson did his best to stay in the lead, but with fuel running low, he came to pit on lap 133, giving up the lead to Busch.
The first three red flags, on laps 14, 20 and 46, delayed the race for a total of over two hours.
Busch's victory in his No. 41 Chevrolet was part of a huge weekend for Chevy, which took the top three spots in this Cup race while also winning in the
This was Busch's third career Cup win at MIS and first since 2007. It's his first multi-win season in NASCAR's top series since 2011.
This was supposed to be a 400-mile, 200-lap race, but the weather made that a tough task from the start. The first red flag delayed the race for about an hour, and the second stoppage came not long after that. Laps 12 through 28 were all under caution, and the third red flag came during a competition caution.
Almost immediately after the race went green following the third red flag,
The bad weather held off for a while after that — until the rain returned with a vengeance. First came the yellow flag, then red. The grandstands were evacuated, and the rest of the race was eventually canceled.