Dale Earnhardt outlasted Darrell Waltrip's charge during a five-lap dash to the checkered flag and won the Goody's 500 stock car race at Martinsville, Va., by a car length. Earnhardt's fourth NASCAR Grand National triumph this year paid $37,725 from the total purse of $279,780.

Waltrip, the defending Goody's 500 champion, gained $24,650 and a NASCAR career earnings mark, $5,828,894 to Richard Petty's $5,824,453. Waltrip cut Bill Elliott's lead in the 1985 Winston Cup standings from 86 points to 23.

Elliott crashed on lap 343 before finishing 17th. Trying to avoid a spin involving Petty and Ricky Rudd, Elliott clipped Petty, became airborne and rammed the wall. Elliott made it to the pits, where it took him about 30 laps to repair car damage . . .

Bobby Rahal held off Rick Mears and won the Detroit News 200 Indy-car race at Michigan International Speedway in Brooklyn, Mich.

Rahal, pole starter in the 200-mile event and winner now in two of the last three CART-PPG series events, drove his March across the finish line seven-tenths of a second ahead of Mears . . .

Don Young, a leading amateur drag racer, died in a dragster crash in the International Hot Rod Association's Fallnationals at Bristol (Tenn.). But in Fremont, Calif., former NFL quarterback Dan Pastorini survived a fiery drag-race wreck.

Young, 38, of Carrollton, Ga., had just completed a quarter-mile run against Eric Hinderberger of Cincinnati when his entry in the Top Sportsman category -- in which he led the 1985 national standings -- smashed into a guardrail at 145 mph and Young was thrown from his car.

Young won three national events this season. Last year he won his first world championship, in the IHRA's Quick Rod class.

In California, rookie competitor Pastorini's top-fuel racer caught fire and exploded as it left the starting line of a quarter-mile timing run Saturday. He was unhurt although his car exploded in a ball of fire and sent flames and metal flying.