Cale Yarborough ducked a six-car accident on the 444th lap and won the Warner Hodgdon Carolina 500 NASCAR Grand National race yesterday in Rockingham, N.C.

Yarborough, who earned $17,360 by averaging 108.992 mph in his Buick, took the lead after Darrell Waltrip wrecked. Waltrip had taken the lead on the 325th lap after an accident finished Neil Bonnett.

Early leader Joe Ruttman piled up on lap 121 and took Richard Petty out with him. No one was seriously injured in the crashes.

In Phoenix, Michael Andretti, 19, son of Mario Andretti, won the Bosch VW Super Vee opener by beating Al Unser Jr. Both drove Ralt RT-5s. In the main event at Phoenix, Rick Mears, in a Penske PC-10, easily beat Mario Andretti in the Kraco 150 Indy race. The elder Andretti confirmed he will drive a Williams car in the Long Beach Grand Prix, replacing Carlos Reutemann, 39, who retired.

In Martinsville, Va., Sam Ard kept Geoff Bodine from sweeping the Dogwood 500 Classic. Ard's Oldsmobile won the 250-lap Late Model Sportsman race by a bumper over Butch Lindley. Bodine, who won the first half of the event Saturday night, was fourth . . .