BASKETBALL—Former NBA star Bob McAdoo scored a game-high 25 points to lead European champion TRACER of Milan to a 100-84 victory over Barcellona for the Intercontinental Cup title, in Milan. Tracer will participate in a three-team round-robin tournament with the Soviet national squad and the NBA Milwaukee Bucks next month in Milwaukee.
BOATING—At the Thunderboat Regatta in San Diego, CHIP HANAUER won the Gold Cup, unlimited hydroplane racing's oldest trophy, for a record sixth straight year by averaging 128.081 mph for six laps on the 2�-mile Mission Bay course.
PRO FOOTBALL—The New York Giants became the first Super Bowl champions since the 1982 San Francisco 49ers to open their title defense with two defeats, when they lost 16-14 to Dallas at the Meadowlands six days after their 34-19 Monday night beating in Chicago. USFL refugee Roger Ruzek kicked three field goals for the Cowboys, while Raul Allegre with :06 left missed a 46-yarder that could have salvaged a win for the Giants. The Bears sank Tampa Bay 20-3 in Soldier Field, as Walter Payton broke Jim Brown's record for career rushing touchdowns by scoring his 107th. In Atlanta, the Falcons stunned Washington 21-20, while Philadelphia's defense forced five turnovers and made three sacks in a 27-17 home win over New Orleans. Minnesota, San Francisco and Buffalo all earned last-second victories. The Vikes beat the Rams 21-16 in Anaheim on Wade Wilson's 41-yard touchdown pass to Hassan Jones with :30 left. Houston lost 34-30 at Buffalo when the Bills' Jim Kelly tossed a 10-yard pass to Ronnie Harmon with :57 to play. The 49ers rallied to defeat the Bengals 27-26 in Cincinnati as Joe Montana threw a 25-yard TD strike to Jerry Rice while time expired. The Dolphins won 23-10 at Indianapolis to extend their league record for consecutive victories over one team to 14. The Colts haven't beaten Miami since 1980. Cleveland hammered visiting Pittsburgh 34-10 (page 14), while Denver settled for a 17-17 overtime tie with Green Bay in Milwaukee. In San Diego the Chargers held off St. Louis 28-24 despite the heroics of the Cards' Neil Lomax, who completed 32 of 61 passes for 457 yards and three second-half TDs. The Raiders routed the Lions 27-7 in L.A., while the Seahawks rebounded from their embarrassing opening-day loss in Denver to crush the Chiefs 43-14 in Seattle. Five Kansas City turnovers led to 23 of the Seahawks' points, while Norm Johnson booted a club-record five field goals.
GOLF—JAN STEPHENSON shot a final-round 68 for a 72-hole, 11-under-par 277, to win the LPGA Safeco Classic in Kent, Wash., by one stroke over Nancy Lopez. The victor got $33,750.
HARNESS RACING—At the Delaware ( Ohio) County Fairgrounds, Dick Stillings guided JAGUAR SPUR ($3.20) to victories in two straight heats to win the Little Brown Jug, the second jewel of pacing's Triple Crown for 3-year-old colts. In the deciding heat, Jaguar Spur, who earned a $124,729 winner's purse, covered the mile in 1:55[3/5] for a 2�-length triumph over Redskin.
Ambro Emerson ($18.40), with Walter Whelan in the sulky, won the Breeders Crown mile pace for older horses at Roosevelt Raceway in a track-record clocking of 1:54. The 4-year-old bay defeated Tucson Hanover by 3� lengths to win a $179,897 purse.
HOCKEY—Mario Lemieux scored his 11th goal of the series with 1:26 to play in Game 3 to give TEAM CANADA a 6-5 victory over the Soviet Union and the Canada Cup championship, in Hamilton, Ont. (page 12).
HORSE RACING—At Belmont Park, JAVA GOLD ($3.40), ridden by Pat Day, won the Marlboro Cup by 2� lengths over Nostalgia Star to earn the $450,000 winner's purse. Java Gold's lime for the 1� miles was 2:01 (page 56).
Cryptoclearance ($5.60), ridden by Jose Santos, triumphed in the Pegasus Handicap at the Meadowlands by 3� lengths over Lost Code. The 3-year-old covered 1? miles in 1:48[3/5] to get the $180,000 winner's purse.
MOTOR SPORTS—ALAIN PROST of France, in a McLaren-TAG, won his 28th Grand Prix event, the Portuguese Grand Prix in Estoril, to surpass Jackie Stewart of Scotland as the winningest Formula One racer ever. Prost completed 70 laps on the 2.703-mile Autodrome course in 1 hour, 37 minutes. 3.906 seconds, 20.493 seconds faster than runner-up Gerhard Berger of Austria, in a Ferrari.