TALLADEGA, Ala. (AP) -- Kyle Busch won under a yellow flag in a wild finish Saturday, taking the Nationwide race at Talladega Superspeedway when a crash sent Mike Wallace's car flipping upside down.

Busch won for the fourth time in seven Nationwide races this year on a day when tandem racing produced a series-record 56 lead changes, 11 cautions and two red flags to clean up all the debris.

Even Busch got caught up in the mayhem, getting spun out in a 21-car crash. But, after his crew patched up the Toyota, he hooked with Joey Logano in a powerful duo that surged past Trevor Bayne and Carl Edwards for the lead on the second attempt at green-white-checkered finish.

When Wallace got turned upside down on the final lap, that assured Busch of the win.