Team owner Roger Penske, who has the most Indianapolis 500 wins among owners, had not won NASCAR's race at the Brickyard before Monday.

Sunday's race spanned six hours, with a rain delay and a record 14 cautions.

Temperatures are expected to top 90 degrees Friday and Saturday. Sunday's forecast is for a high of 89.

It will serve as the final regular season race on the NASCAR schedule.

He led a race-record 149 of the 170 laps and beat Joe Gibbs Racing teammate Matt Kenseth to the finish line by 2.126 seconds.

Gordon retired as a NASCAR driver at the end of last season, and he's been working as a broadcaster this season.

Gordon retired at the end of last season, but will return this weekend to fill in for Earnhardt, who is recovering from a concussion.

Kyle Busch won his first Brickyard 400 at the Indianapolis Motor Speedway on Sunday, continuing a dominant run that has included four wins in the last five races -- including three straight.