A Roundup Of The Week July 31-august 6

BOXING—HUGO CORRO of Argentina retained his world middleweight title with a 15-round decision over Ronnie Harris of Canton, Ohio, at Buenos Aires.

DIVING—CYNTHIA POTTER of Houston got a record 27th career national title by winning the women's one-meter springboard at the AAU championships in Mission Viejo, Calif. Other winners: GREG LOUGANIS in the men's one-meter springboard and the men's 10-meter platform; JIM KENNEDY in the men's three-meter springboard; JENNIFER CHANDLER in the women's three-meter springboard; MELISSA BRILEY in the women's 10-meter platform.

GOLF—JOHN MAHAFFEY defeated Tom Watson and Jerry Pate on the second hole of sudden death to win the PGA Championship at Oakmont, Pa. (page 16).

Nancy Lopez shot a final-round, one-under-par 73 for a 72-hole total of 289, seven under par, to win the $100,000 European Open by three strokes.

HARNESS RACING—FALCON ALMAHURST ($5.80), driven by Billy Haughton, won the $560,000 Meadowlands Pace by two lengths over Abercrombie. The 3-year-old was timed in 1:55[1/5] (page 60).

HORSE RACING—ALYDAR ($3.40), Jorge Velasquez up, won the $82,575 Whitney Stakes at Saratoga by 10 lengths over Buckaroo. The 3-year-old ran the mile and an eighth in 1:47[2/5] (page 53).

MOTOR SPORTS—LENNY POND, driving an Oldsmobile, averaged 174.7 mph, a record for a 500-mile race, while winning the first Grand National race of his career, the $217,150 Talladega 500 at Talladega, Ala.

A. J. Foyt, in a Coyote, averaged 159.047 mph on the two-mile Texas World Speedway oval to win the 200-mile Texas Grand Prix at College Station over Johnny Rutherford in a McLaren.

SOCCER—NASL: Vancouver, which set the league record for consecutive victories (10) last week, added three more wins to its total and shared the best winning percentage (.800) in the league with the Cosmos as the regular season ended. The Whitecaps routed the Earthquakes 6-0 on Kevin Hector's hat trick, then defeated San Diego 2-1. Seattle won three games and qualified for a playoff berth in the National Conference. The Sounders beat Portland 3-2 when Mickey Cave scored the winning goal in overtime; Oakland 2-1 in a shootout; and California 5-2. That win eliminated Dallas from playoff consideration, despite the Tornado's subsequent 5-3 win over the Cosmos. Jeff Bourne of the Tornado scored four goals, three of them in a four-minute, 24-second stretch of the first half, a league record. Minnesota clinched first place in the National Conference Central, beating Los Angeles 5-0 and Colorado 2-0. Washington held on to second place in the National Conference East, although losing to Toronto 2-0. The Diplomats lost to the Cosmos 2-1 when Jimmy Steele kicked the ball into his own goal. Detroit defeated New England 1-0 and kept the Tea Men from clinching first place in the American Conference East, at least for one game. New England beat Memphis 3-2 in overtime and edged Tampa Bay, which defeated Toronto 5-1 and Houston 3-2, for first place. The loss eliminated Houston from a playoff berth. Philadelphia qualified by defeating Detroit 3-2 and Rochester 3-2, helping to ruin the Lancers' playoff hopes. San Jose defeated Oakland 2-1, knocking the Stompers out of the playoffs.

ASL: Southern California has taken six straight, nine of its last 10 and has moved into a second-place tie with Los Angeles in the West. The Lazers beat Sacramento 3-0, with Sid Wallace getting a goal and an assist, while John Granville got his fifth shutout in the last six games. Wallace is the league's scoring leader with 31 points. Granville, who has given up just one goal in the last six games, lowered his league-leading goals-against average to 0.69.