(AP Photo/Warren Wimmer)

JOLIET, Ill. (AP) Dario Franchitti's pit strategy gamble paid off, helping him to win a frantic IndyCar series race at Chicagoland Speedway on Saturday night.

It was a tough night for series points leader Will Power, who was running among the leaders when he abruptly went to pit road for an extra fuel stop with five laps left in the race. He finished 16th.

That's an ideal scenario for Franchitti, who came into Saturday's race trailing Power by 59 points in the standings.

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