Greg Biffle led in lap 191 before a caution brought the field together. Leffler took the lead in lap 197, then jockeyed with Biffle for a while before finishing strong at O'Reilly Raceway Park.

Leffler last won on June 12, 2004 in the Federated Auto Parts 300 in Nashville. Biffle hasn't won this season, and had only one top-five finish in 18 starts before Saturday's race.

Two racers who started at the back of the pack, David Reutimann and Carl Edwards, finished third and fourth, respectively. Reutimann started 40th out of 43 cars and Edwards started 41st.

Edwards, Reutimann, David Ragan, Scott Wimmer and J.J. Yeley started in the back of the field because qualifying for Sunday's Allstate 400 at the Brickyard overlapped with qualifying for Saturday's Kroger race. Those drivers opted to focus on the Brickyard and have fill-ins get their cars qualified for the Kroger race.

Edwards' performance was impressive because he arrived in Indianapolis on Thursday wearing a protective brace around his dislocated right thumb. He was injured on July 22 at a dirt-track race when he hit the back of a car that spun out in front of him. Edwards plans to wear a similar brace during Sunday's race.

Last year's Kroger winner, Kevin Harvick, chose not to compete on Saturday. He had won three races this season and was third in the point standings.