SPARTA, Ky. -- Matt Kenseth's fuel-only pit road gamble helped him beat Jimmie Johnson late and win Sunday's rescheduled 400-mile NASCAR Sprint Cup Series race at Kentucky Speedway.
A race that was Johnson's to lose ultimately became Kenseth's series-high fourth victory of the season even though he passed on getting new tires following the race's ninth caution. He widened his lead after a wild four-wide restart on lap 246 that saw Johnson's No. 48 Chevy spin from second place on a dominant day he led three times for 182 of 267 laps.
The series points leader finished ninth and leads Carl Edwards by 38 points.
Kenseth led twice for 38 laps, including the final 23 in the No. 20 Toyota.
Second was Jamie McMurray in a Chevy, followed by Clint Bowyer (Toyota), Joey Logano (Ford) and Kyle Busch (Toyota).
Rain on Saturday forced NASCAR officials to postpone the race to a daytime start.
The race was red-flagged for 18 minutes following a six-car wreck involving defending race and Sprint Cup winner Brad Keselowski, who returned to finish 33rd.
Kenseth, like Johnson, was due for a breakthrough on the 1.5-mile oval after finishing seventh here last year and sixth in the 2011 inaugural race. But victory didn't seem likely for the 2003 Cup champion after qualifying 16th and running outside the top 20 during the first quarter of the 267-lap event.