A Roundup of the Week Aug. 31-Sept. 6

BOXING—VIRGIL HILL claimed the WBA light heavyweight title with a fourth-round TKO of Leslie Stewart, in Atlantic City.

Sot Chitalada of Thailand knocked out Ann Rae-Ki of South Korea in the fourth round of their scheduled 12-round bout to retain his WBC flyweight championship, in Bangkok.

Chang Ho-Choi of South Korea won the IBF flyweight title with an 11th-round knockout of Do-die Penalosa of the Philippines, in Manila.

CYCLING—STEPHEN ROCHE of Ireland, the Tour de France and Tour of Italy champion, won the World Professional Road Championship, in Villach, Austria, to become only the second racer ever to claim cycling's Grand Slam (Eddy Merckx of Belgium did it in 1974). Roche outsprinted 13 competitors, including defending champion Moreno Argentin of Italy, in the final 250 meters, to complete the 167-mile event in 6:50:02.

GOLF—JOEY SINDELAR shot a final-round, two-under-par 69 for a 72-hole total of 266, 18 under par, to win the B.C. Open and $72,000, in Endicott, N.Y. Sindelar defeated Jeff Sluman by four strokes.

HARNESS RACING—In the World Trotting Derby at the Du Quoin (Ill.) State Fairgrounds, NAPOLE-TANO ($6.80), driven by Bill O'Donnell, won the $251,000 purse in two straight heats when 1-5 favorite Mack Lobell, unbeaten in eight previous starts this year, broke stride in both. Napoletano covered the mile in 1:53[2/5] in the deciding heat, to beat Crown Sweep by two lengths.

HOCKEY—In Canada Cup competition in Sydney, Nova Scotia, Czechoslovakia defeated the U.S. 3-1 and joined Sweden, Canada and the Soviet Union in the playoff round. Canada clinched first place in the round-robin phase by tying the Soviets 3-3 in Hamilton, Ont., on Wayne Gretzky's goal with 2:27 to play (page 24).

HORSE RACING—MANILA ($4), ridden by Angel Cordero, won the Budweiser-Arlington Million and a $600,000 winner's purse at Arlington Park, by 1¼ lengths over Sharrood. Manila's time for the 1¼ Miles was 2:02[2/5].

Polish Navy ($12.80), ridden by Randy Romero, won the Woodward Stakes at Belmont Park by three quarters of a length over Gulch. The 3-year-old ran nine furlongs in 1:47 to win $357,000.

Single Blade ($27.60), Chris Antley up, beat Without Feathers by three quarters of a length in the Gazelle Handicap at Belmont. The 3-year-old filly ran 1‚Öõ miles in 1:48[1/5] to win $80,100.

MOTOR SPORTS—NELSON PIQUET of Brazil drove his Williams-Honda to an unprecedented fourth triumph in the Formula One Italian Grand Prix in Monza, defeating compatriot Arton Senna, in a Lotus-Honda, by 1.8 seconds. Piquet covered 180.2 miles on the 50-lap circuit in 1:14:47.707 at an average speed of 145 mph.

Dale Earnhardt, in a Chevrolet, won the rain-shortened NASCAR Southern 500 at the Darlington (S.C.) International Raceway. He beat Rusty Wallace, in a Pontiac, by one car length.

In Lexington, Ohio, ROBERTO GUERRERO of Colombia, in a March-Cosworth, won the CART Radar Warning 200 at the Mid-Ohio Race Course by 25.90 seconds over Bobby Rahal, in a Lola-Cosworth. Guerrero, who won $67,410, completed the 84 laps on the 2.4-mile circuit in 1:51:58.70, averaging a track-record 107.431 mph.

TRACK & FIELD—At the World Championships in Rome, East Germany finished with 31 medals, including 10 golds, while the Soviet Union was second with 7 gold medals and 25 overall. The United States, led by JACKIE JOYNER-KERSEE and CARL LEWIS, earned 19 medals, 9 of them gold. Joyner-Kersee set meet records in the women's long jump (24'1¾") and the heptathlon (7,128 points), while Lewis retained his world title in the men's long jump (28'5½") and anchored the men's 4 x 100-meter relay team, which won the gold medal in the third-fastest time (37.90) ever. The U.S. women's 4 X 100 relay team upset East Germany with a time of 41.58. It was the first U.S. victory over the East German women in a championship final in 20 years. TORSTEN VOSS of East Germany won the decathlon (8,680 points), to end the nine-year winning streak of world-record holder Daley Thompson of England (page 18).

VOLLEYBALL—The United States men's team defeated the Soviet Union 3-2 (16-14, 15-8, 9-15, 12-15, 15-13) to win the Savinne Cup Tournament in Talin. It was the first time the U.S. has won a volleyball tournament in the U.S.S.R.

MILEPOSTS—RELEASED: From a federal prison in Talladega, Ala., former major league pitcher DENNY McCLAIN, 43, after serving 28 months of a 23-year sentence for racketeering, extortion and drug dealing. An appellate court in Atlanta overturned McClain's sentence after ruling that the two-time Cy Young Award winner had been denied a fair trial.

RETIRED: Atlanta Falcons All-Pro running back WILLIAM ANDREWS, 31, the Falcons alltime leading rusher, with 5,986 yards. He returned to action last year after a knee injury had caused him to miss the previous two seasons.

SUSPENDED: For 10 days, by National League president A. Bartlett Giamatti, Houston Astros outfielder BILLY HATCHER, 26, for using a corked bat in a game against the Chicago Cubs. Giamatti also fined Astros manager HAL LANIER an undisclosed sum, maintaining that a manager is responsible for any illegal equipment used by his players.

TRADED: By the New England Patriots, tackle BRIAN HOLLOWAY, 28, to the Los Angeles Raiders, for an undisclosed 1988 draft choice. The three-time All-Pro is first vice-president of the NFL Players Association.

By the St. Louis Cardinals, defensive end AL (BUBBA) BAKER, 30, to the Cleveland Browns, for an undisclosed future draft choice.

By the Toronto Maple Leafs, forwards RICK VAIVE, 28, and STEVE THOMAS, 24, and defenseman BOB McGILL, 25, to the Chicago Black-hawks for forwards AL SECORD, 29, and ED OLCZYK, 21.

By the Baltimore Orioles, lefthanded pitcher MIKE FLANAGAN, 35, to the Toronto Blue Jays for a minor leaguer and a player to be named later; to make room for Flanagan, Toronto released righthanded pitcher PHIL NIEKRO, 48, who was acquired from Cleveland on Aug. 9; by the Boston Red Sox, designated hitter DON BAYLOR, 38, to the Minnesota Twins and outfielder DAVE HENDERSON, 29, to the San Francisco Giants, for players to be named later.

DIED: Sports columnist DICK YOUNG, 69, a member of the Baseball Hall of Fame; of cardiorespiratory failure; in New York City. In a career spanning 50 years, Young wrote for the New York Daily News for 45 years before joining the New York Post in 1982. He was elected to the writers' wing of the Hall of Fame in 1978.