ARENA FOOTBALL—Detroit (3-1) took over first place by defeating previously unbeaten Pittsburgh 61-34 in a game played in Richfield, Ohio. The Drive opened in high gear as George LaFrance returned the opening kickoff 58 yards for a touchdown. Gladiators quarterback Willie Totten, the league's top-rated passer, kept Pittsburgh in the game by completing 20 of 34 for 200 yards and three touchdowns, but his efforts weren't enough, as Detroit got two more touchdowns from La- France and three from running back Lynn Bradford. Pittsburgh, now 2-1, is tied for second with Denver, a half game behind Detroit. Chicago got its first victory in its three games by beating Maryland, 61-27, in Cincinnati. The Bruisers were led by quarterback Ben Bennett and receiver Carl Aikens, who combined for five touchdowns. The Commandos (0-3) were thereby eliminated from the race for one of the four spots in the playoffs.
BOWLING—JOE SALVEMINI rolled seven straight strikes to beat top-seeded Dave Ferraro 248-216 and win a PBA tour event in Austin, Texas. The victory was worth $20,000.
CYCLING—In women's events at the national track cycling championships in Redmond, Wash., defending titlist CONNIE YOUNG won the match-sprint gold medal; MINDEE MAYFIELD got her third consecutive 3,000-meter individual pursuit crown; JANIE EICKHOFF won the 1-km time trial; and KAREN BLISS finished first in the points race. In the men's competition, ERIN HARTWELL won the 1-km time trial; KEN CARPENTER the match sprint; CRAIG SCHOMMER the points race; and STEVE HEGG the 4,000-meter pursuit. Hegg teamed with LEONARD HARVEY NITZ, CARL SUNDQUIST and KEVIN PECK to win the team-pursuit title, and MARTY NOTHSTEIN and PAUL SWIFT won the tandem pursuit.
GOLF—LEONARD THOMPSON finished with a 15-under-par 273 to defeat Payne Stewart, Doug Tewell and Billy Andrade by one stroke and win a PGA Tour event in Grand Blanc, Mich. Thompson, whose last victory on the Tour was in 1977, earned $180,000.
Nancy Lopez shot a one-under-par 69 in the final round to win an LPGA tour event in Atlantic City by one stroke over Chris Johnson and Vicki Fergon. Lopez, who finished with a four-under-par 206, earned $33,750 for her 41st career victory.
HARNESS RACING—SAM FRANCISCO BEN ($15.60), with Ron Pierce in the sulky, made a late charge to beat In The Pocket by a neck and win the Woodrow Wilson Pace, at the Meadowlands. The 2-year-old colt went the mile in 1:56 to earn $453,500.
Kick up a storm ($16.40), with Ron Waples driving, caught Dancing Master in the stretch and won the inaugural Art Rooney Pace by a neck, at Yonkers Raceway. The 3-year-old colt covered the mile in 1:56[1/5] and received a purse of $150,000.
HORSE RACING—KING GLORIOUS ($3.40), Chris McCarron up, beat Music Merci by three lengths to win the Haskell Invitational Handicap, at Monmouth Park. The 3-year-old colt ran the 1? miles in 1:49[4/5] and earned $300,000.
El senor ($4.60), with Herb McCauley in the saddle, overtook Nediym to triumph by half a length in the Sword Dancer Handicap, at Belmont Park. The 5-year-old covered the 1� miles in 2:27 to win $139,920.
MOTOR SPORTS—AYRTON SENNA, driving a McLaren- Honda, finished 18.151 seconds ahead of teammate Alain Prost to win the German Grand Prix, in Hockenheim, West Germany. Senna covered 44 laps of the 4.214-mile circuit in 1:21:43.302, for an average speed of 139.231 mph.