BOXING—AARON PRYOR retained his WBA junior welterweight title with a sixth-round TKO of Akio Kameda in Cincinnati.
Kim Chul Ho retained his WBC super flyweight title after a 15-round draw with Raul Valdez in Taejon, South Korea.
CREW—At the 143rd Henley Royal Regatta in England, LEANDER AND LONDON ROWING CLUB won the Grand Challenge Cup for elite eights as the two American entries, Yale and California, failed to advance to the finals. American victors were the CHARLES RIVER ROWING ASSOCIATION in the Thames Challenge Cup and BOSTON UNIVERSITY in a women's coxed four exhibition.
GOLF—TOM WEISKOPF shot a course-record 12-under-par 276 to win the $350,000 Western Open in Oak Brook, Ill. He beat Larry Nelson by one stroke.
Sandra Haynie fired an eight-under-par 280 to beat Beth Daniel by a stroke and win her second straight LPGA tournament, the $200,000 Peter Jackson Classic in Toronto.
HARNESS RACING—PITT BOY ($9), driven by Jim Doherty, beat McKinzie Almahurst by 2� lengths to win the $519,000 New Jersey Classic at the Meadowlands. The 3-year-old paced the mile in 1:54[4/5].
HORSE RACING—SILVER BUCK ($7.60), Donald MacBeth up, beat It's The One by three lengths to win the $167,700 Suburban Handicap at Belmont. The 4-year-old colt ran the 2�-miles in 1:59[3/5].
MOTOR SPORTS—BOBBY ALLISON, in a Buick, beat Bill Elliot, in a Ford, by half a car length to win the Firecracker 400. He averaged 163.099 mph on the 2�-mile Daytona International Speedway.
Rookie BOBBY RAHAL, driving a March, beat Mario Andretti, in a Wildcat, by 22 seconds to win the inaugural Cleveland 500 (kilometer) race for Indy-type cars. Rahal averaged 101.234 mph around the 2.48-mile circuit, staged on the runways of Cleveland's Burke Lakefront Airport.
Didier Pironi won the Dutch Grand Prix in a Ferrari, 21.6 seconds ahead of Nelson Picquet, in a Brabham. Pironi averaged 116.386 mph for 72 laps of the 2.64-mile Zandvoort circuit.