Calvin Peete shot a final-round 72 yesterday for a seven-under-par round of 281 to win the $409,000 Dunlop Phoenix golf tournament in Miyazaki, Japan.

Peete, 39, who will represent the United States in the World Cup tournament in Mexico next month, won $60,377 and a car. Earlier this month, Peete shared top individual honors in the $440,000 U.S.-Japan Goldwin Cup series.

Severiano Ballesteros and Larry Nelson tied for second at 284. Ballesteros had a 67 yesterday while Nelson had a final-round 70. Ballesteros and Nelson each received $29,433 . . .

Bob Shearer shot two-under-par 70 to take a four-stroke victory in the $225,000 Australian Open tournament in Sydney.

Shearer finished with a 72-hole total of 287 in earning the top prize of $40,500, the biggest of his career, and lifting his 1982 winnings over $250,000.

Jack Nicklaus, who designed the Australia Club course where the tourney was played and who contributed his $50,000 appearance money to the purse, had a closing 72 to finish in a tie for second with Payne Stewart at 291 . . .

Gary Marlowe of Rockville, Md., shot a final-round 76 for a 108-hole total of 453 strokes in failing to gain his PGA Tour card at the Tournament Players Club in Ponte Vedra, Fla. However, he did qualify for the satellite Tournament Players Series beginning next spring.

Donnie Hammond of Longwood, Fla., finished first in the PGA Tour Qualifying Tournament with 75--419.