Dover, Del. ? Greg Biffle gave car owner Jack Roush another reason to celebrate during his first weekend back at the track.

Biffle overcame several problems and won a three-lap shootout after the race was red-flagged to claim the NASCAR Busch Series race Saturday at Dover International Speedway.

While running away with the race, he made a great save. Later, a mechanical problem threatened his Ford.

“We’ve had runs like this all year, but we haven’t been able to close the deal,” Biffle said.

Roush, who also owns four Winston Cup cars that will race Sunday in the MBNA Platinum 400, was nearly killed six weeks ago when the light plane he was piloting crashed in a lake in Alabama.

“I can’t tell you how proud and happy I am to be here,” Roush said. “Greg Biffle really did a great job.”

The victory Saturday in the MBNA Platinum 200 came just hours after Matt Kenseth blew an engine during practice. Kenseth gave Roush his first reason to celebrate Friday by winning the first pole of his Winston Cup career, but he was forced to go to the back of the field because of the engine change.

Biffle had no engine problems. He took the lead from polesitter Jeff Green on the 70th of 200 laps on The Monster Mile and drove off to what should have been an easy victory.

But on the 172nd lap, the car suddenly swerved exiting the second turn on the high-banked concrete oval. He straightened the car out, and held on to what had been a substantial lead.

“I think I was getting tired,” Biffle said. “I haven’t worked out since my crash.”

Biffle said his neck has been sore since an accident two weeks ago in Nazareth, Pa.

A lap later, Jamie McMurray, running third at time, hit the wall to bring out the fourth caution of the race. Many of the contenders came in for fresh tires, but Biffle chose not to pit.

But the red flag, which followed a crash between Jason Keller and Hank Parker Jr., gave Jeff Green a shot at beating Biffle, whose alternator malfunctioned with about 10 laps remaining.

Green was among those who stopped for tires. But he was unable to catch Biffle, who won the $854,039 race by 0.675 seconds over Green’s Chevrolet.