DAYTONA BEACH, Fla. -- Kyle Busch survived a drag race with Carl Edwards, and won a wreck-filled race at Daytona International Speedway under caution Saturday night.

Busch, the Sprint Cup Series points leader, was racing side-by-side with Edwards with just over a lap to go when a multicar accident erupted behind them.

The field was immediately frozen, and Busch and Edwards had to wait an anxious several minutes as NASCAR reviewed its scoring data to determine who was out front at the time of the caution.

The win went to Busch, his series-best sixth victory of the season. In all, Busch has 12 wins this year spanning all three of NASCAR's top series.