The scenic Golden Horseshoe course in Williamsburg, a Robert Trent Jones-designed layout with a par-3 island hole, will be the site of the Middle Atlantic PGA Championship, Aug. 15-17. The 54-hole event, sponsored by U.S. Air, will offer a purse of more than $40,000. Mike Wynn of Evergreen is the defending champion.

Wynn leaves today for the PGA Championship, which will start Thursday at Riviera in Los Angeles. Wynn, who played on the PGA Tour for six years, qualified by finishing 12th in the Club Pro Championship.

Calvin Peete, winner of last week's Anheuser-Busch Classic for the second straight year, has his ailing back treated periodically at Howard University. Peete, who had to miss the British Open two weeks ago before winning at Kingsmill, was forced to pull out of the Canadian Open Thursday with back miseries.

A pulled muscle forced the British withdrawal, but there was no indication whether it was the muscle or Peete's chronic disk problem that forced the Canadian withdrawal. Peete said at Kingsmill he felt no pain and planned to play in the PGA, the World Series and the new $1 million, Las Vegas PGA event in September. "I think I will win a major championship before I retire," said Peete, 40 . . .

Former Virginia Open champion Tony DeLuca now plays out of Kingsmill. DeLuca, who learned his golf at Chantilly and Westwood, will move in August from his Fairfax home to a villa just off the 12th hole . . . How hot was it for last Thursday's opening round at Kingsmill? Pro Roger Maltbie almost collapsed, struggling from the eighth hole to the finish with a towel holding ice cubes draped around his neck . . . Not all PGA pros are willing to answer questions for 20 minutes after losing a big lead and the tournament, as Hal Sutton did last Sunday . . . Maryland Open champion Fred Funk leads the MAPGA money list with more than $6,750, followed by Fred Gibson at $3,625. They are also one-two in the Yamaha point standings . . . The Charles Town Classic is Wednesday and Thursday at Sleepy Hollow. The tournament is sponsored by MAPGA in conjunction with the Charles Town Turf Club, and raises money for West Virginia charities . . . Bill Bassler Jr. of Rolling Road was low area pro in last week's Greater Baltimore Open, 285 strokes for $2,304; followed by Gibson, 288, $1,075; Funk 292, $770, and Herb Rose, 295, $560. Jim Seeley 298, played four rounds but won no money. The Thursday-through-Sunday crowds at Hillendale were 1,500, 2,200, 2,800 and 3,800 . . . NASCAR driver Ricky Rudd and media personalities will play in a pro-celebrity event Friday at Hobbit's Glen, sponsored by BWI Airport and Piedmont Airlines . . . The Fairfax city golf tournament is Friday, Aug. 12, at Woodlawn. Deadline for signups ($21) is Wednesday at the Fairfax Recreation Department . . . Peter Nadanyi is the area's only representative in the USGA Junior Amateur in Bethlehem, Pa., starting Tuesday . . . The South Atlantic Junior will start Monday at Crofton.