Here's more: https://nascar.nbcsports.com/2019/07/07/justin-haley-wins-rain-shortened-coke-zero-sugar-400/
Not sure when it started, but NASCAR now has a policy that they shut down the show for a minimum of 30 minutes if they pick up a lightning strike within 8 miles of the track. They pull the cars off the track and instruct spectators to leave the stands and stay tuned to local weather. The 30 minute clock continues to reset if more lightning strikes are recorded. (I remember them doing this for little league games a few years ago, but don't think I ever saw it applied to a Nascar race before.)
For those who didn't watch, big wreck with about 35 to go when what looked to me was caused when leader Austin Dillon low blocked Clint "Itchy Arms" Bowyer entering turn one, with the two cars making contact, followed by about 15 more...
There was threatening weather in the area so some cars stayed out on the track deciding not to pit in case it started raining/or lightning strikes occured.... and decided to ride it out until the the green next time by signal was given by Nascar. When that signal was given, then leader Kurt Busch and others pulled down pit lane, with Justin Haley, William Byron and others choosing to stay on the track. Before the cars were able to come around to get the green, there was another lightning strike, so the cars came back down pit road and were held there. They waited out the mandatory 30 minutes and were about to roll back off pit road and onto the track to complete the remaining 30 or so laps, when weather hit again. They waited it out another 30 minutes or so and then called it with Haley getting the win.
The circumstances made Justin Haley the winner today, but for anybody that has watched truck races or Xfinity races over the past year or two, the kid is a racer!