Busch uses late bobble to get past Blaney on final lap to win Xfinity race at Indianapolis

Kyle Busch does a burnout on the front straight after winning the NASCAR Xfinity Series auto race at Indianapolis Motor Speedway in Indianapolis, Saturday, July 25, 2015. (AP Photo/Rob Baker) (The Associated Press)

Kyle Busch, left, kisses the yard of bricks next to his wife, Samantha, right, and son, Brexton, after winning the NASCAR Xfinity Series auto race at Indianapolis Motor Speedway in Indianapolis, Saturday, July 25, 2015. (AP Photo/Rob Baker) (The Associated Press)

Kyle Busch took advantage of Ryan Blaney's last-lap bobble, making an inside pass on the back straightaway to win the Xfinity Series race Saturday at Indianapolis Motor Speedway.

Busch raced to his second Xfinity Series victory in three years at Indianapolis — both from the pole — and pushed his series-record victory total to 72. The margin of 0.421 seconds was the closest in the four races held on the historic 2.5-mile oval.

Though Busch, sidelined at the start of the season after breaking his right leg and left foot in the Xfinity opener at Daytona, dominated the race, he surrendered the lead on the final restart after choosing the outside line. Blaney outraced him to the first turn on Lap 76.

The 21-year-old looked as if he would hold on after extending the lead to 0.808 seconds with 10 laps left. But with Busch closing and Blaney trying to move past a lapped car, Blaney's car wiggled, Busch ducked inside and regained the lead.

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