The Brickyard 400 NASCAR Cup Series race on July 27 at Dover Motor Speedway is under a weather delay for rain with four laps to go.
Bubba Wallace held a 4-second lead over Kyle Larson before the caution flag waved for rain with six laps to go.
Rain was visible on turns 1 and 2, and increased across the frontstretch as the red flag was displayed.
Indianapolis Motor Speedway does not have lights, so this race will have to be restarted before nighttime on Sunday.
This story will be updated.
