Chris Buescher was declared the winner of Monday's rescheduled Pennsylvania 400 at Pocono Raceway after more inclement weather blew through the area and ended the race 22 laps short of the finish.
The No. 34 driver and Front Row Motorsports rookie led 12 of the scheduled 160 laps amid wet and foggy conditions that persisted and delayed the start time by one hour after the race was a washout on Sunday.
It was Buescher's first career Sprint Cup Series victory, and he became the first Rookie of the Year contender to win a Cup race since Joey Logano won at New Hampshire Motor Speedway in 2009 - a race that was also shortened by rain.
"I'm trying to remember every rain dance I ever learned," Buescher said over his radio as he waited out the weather warning in his car.
"It's a tough way to end the race for a lot of people. But it's a great way for us."
Regan Smith (Tommy Baldwin Racing) finished second and Brad Keselowski (Team Penske), Kevin Harvick and Tony Stewart (both Stewart-Haas Racing) rounded out the top five.
Pole-sitter Martin Truex Jr. (Furniture Row Racing) led the first 16 laps before a competition caution. He hit the wall on lap 19 then cut a tyre on lap 40, forcing him to head to the garage before returning on lap 59. He finished 38th.
Things looked promising for Logano before Chase Elliott made contact with the No. 22 as he tried to pass him down low on lap 104, sending both cars into the wall and prompting the sixth caution of the day. Logano went to the garage after leading a total of 38 laps, but returned to the race 23 laps down on lap 128.
The seventh caution was not far behind, coming with 28 laps to go as heavy fog obscured visibility of the three-turn, 2.5-mile track. The red flag followed and halted the race with 22 laps to go and after more than hour of waiting the race was called.