During a late caution, Marlin stayed out in the lead, while many of the leaders pitted for new tires.
On a late caution, Kenseth and crew chief Jimmy Fennig called an audible in the pits and decided to go with two tires instead of four.
She had to hope her fuel would last and a late caution would freeze the field with her in the lead.
With two laps to go, Dixon led second-place Franchitti on a restart after a late caution.
However, a late caution came out with three to go, setting up a fast finish.
A late caution forced a green-white-checkered finish which gave Hornaday the edge on the restart to beat Brian Scott.
After pit stops due to a late caution, Juan Pablo Montoya was in the lead with Johnson in second.
On a late caution, Smith stayed out on older tires while Edwards and most of the lead lap cars pitted for fresh right side tires.
A late caution can force teams to make a tough call: stay out on worn tires, or pit and give up track position.
However, a late caution for a crash by Mike Bliss, James Buescher, and Kyle Fowler bunched up the field.