BILLIARDS—JEAN BALUKAS beat Lori Shampo 7-4 to win the first Women's World Invitational Seven-Ball championships in Atlantic City.
BOXING—BRUCE CURRY retained his WBC junior welterweight title with a seventh-round knockout of Hidekazu Akai in Osaka.
Lupe Madera won the WBA junior flyweight title from Katsuo Tokashiki on points when the fight was stopped in the fourth round, Madera's head having been severely cut when the two boxers accidentally butted heads.
PRO FOOTBALL—USFL: PHILADELPHIA defeated Chicago 44-38 and MICHIGAN defeated Oakland 37-21 to advance to this week's championship game in Denver (page 24).
GOLF—MARK McCUMBER shot a four-under-par 284 to win the $350,000 Western Open in Oak Brook, Ill. He beat Tom Watson by one shot.
Morris Hatalsky parred the second extra hole to win the $250,000 Greater Milwaukee Open in a playoff with George Cadle. Both finished regulation play at 13-under-par 275.
Lee Trevino shot a 17-under-par 271 to beat Tommy Nakajima by three strokes to win the $100,000 Canadian PGA Championship in Quebec.
HARNESS RACING—APACHE CIRCLE ($47.80), driven by Eldon Harner, edged previously unbeaten Party Whip by a neck in the $559,800 Peter Haughton Memorial Pace at Roosevelt Raceway. The 2-year-old colt covered the mile in 1:59[3/5].
HORSE RACING—JOHN HENRY ($6.20), Chris McCarron up, beat Prince Florimund by 1� lengths to win the $164,600 American Handicap at Hollywood Park. The 8-year-old 1981 Horse of the Year, who was making his first start since November, ran 1? miles in 1:48[2/5].
MOTOR SPORTS—BUDDY BAKER, his Ford out of gas, coasted across the finish line of the Firecracker 400 three seconds ahead of Morgan Shepherd in a Buick. He averaged 167.442 mph on the 2�-mile Daytona International Speedway.