ARENA FOOTBALL—After the five-team league's second week of play, defending champion Detroit remained undefeated with a 39-7 rout of Maryland. Mike Trigg paced the Drive with four touchdowns. In its season opener Detroit met Chicago in a rematch of the 1988 title game and beat the Bruisers 40-28 as the Drive's Tony Burris passed for 115 yards and two touchdowns. Pittsburgh, which had a bye during the first week of play, opened its season by defeating Denver 28-18 behind Willie Totten's 204 yards passing. The Dynamite, now 1-1, upended Maryland 20-15 in its first game. The Commandos are winless in two games.
BOXING—GIANFRANCO ROSI of Italy won the IBF junior middleweight title with a 12-round unanimous decision over Darrin Van Horn, in Atlantic City.
CYCLING—After 15 stages of the 23-stage, 2,020-mile Tour de France, Greg LeMond of the U.S. recaptured the lead, 40 seconds ahead of Laurent Fignon of France.
FENCING—At the world championships in Denver, the SOVIET UNION won both the men's team-saber and team-foil competitions and ITALY won the men's team-�p�e title. Individual winners were GRIGORY KIRIENKO of the Soviet Union (saber), ALEXANDER KOCH of West Germany (foil) and MANUEL PEREIRA of Spain (�p�e). In the women's events, OLGA VELICHKO of the Soviet Union (foil) and ANJA STRAUB of Switzerland (�p�e) won individual gold medals, with WEST GERMANY (foil) and HUNGARY (�p�e) getting the team crowns.
GOLF—BETSY KING shot a six-under-par 278 to win the U.S. Women's Open by four strokes over Nancy Lopez, in Lake Orion, Mich. She earned $80,000 for the victory (page 71).
Mike Donald beat Tim Simpson and Hal Sutton in a sudden-death playoff to win a PGA event and $153,000 in Williamsburg, Va. The three finished regulation play at 16-under-par 268.
Michael Allen shot a 12-under-par 272 to defeat Ian Woosnam and Jose Maria Olazabal by two strokes and win the Scottish Open, at Gleneagles. The victory was worth $80,000.
HARNESS RACING—VALLEY VICTORY ($2.60), driven by Bill O'Donnell, beat Bon Vivant by three lengths to win the Yonkers Trot, the opening leg of the Triple Crown for trotters. The 3-year-old covered the mile at Yonkers Raceway in 1:58[3/5] and won $83,762.
Dexter Nukes ($4.40), with John Campbell in the sulky, defeated Casino Cowboy by 3� lengths to win the Meadowlands Pace at the Meadowlands Race Course. The 3-year-old colt covered the mile in 1:51[3/5] to earn $426,000.
HORSE RACING—SEWICKLEY ($8.60), ridden by Randy Romero, beat Houston by three lengths to win the Tom Fool Stakes, at Belmont Park. The 4-year-old colt ran the seven furlongs in 1:24 for the $67,920 winner's purse (page 75).