Bowyer was able to avoid Earnhardt's wreck before a caution flag was posted.
Denny Hamlin, a native of nearby Chesterfield, Va., led the race a record 381 of its 400 laps, but finished out of the top-10 because of a slow leak in his right front tire.
"Everybody probably is racing around the race track scared to death of wrecking Dale Earnhardt Jr., so why wouldn't I be any different?" Busch asked. "That was just a product of good hard racing and I hate it that (the wreck happened)."
Earnhardt has not won in his last 71 races.
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