A roundup of the week Sept. 28-Oct. 4

BOXING—ALEXIS ARGUELLO knocked out Ray (Boom Boom) Mancini in the 14th round to retain his WBC lightweight title in Atlantic City (page 26).

Marvin Hagler successfully defended his undisputed world middleweight crown with an 11th-round TKO of Mustafa Hamsho in Rosemont, Ill. On the same card, MIKE WEAVER retained his WBA heavyweight championship with a 15-round unanimous decision over James (Quick) Tillis (page 29).

PRO FOOTBALL—There was joy at last in New England as the Patriots dropped out of the winless ranks with a 33-17 victory over Kansas City. The Pats turned their first two interceptions of the year into touchdowns, Matt Cavanaugh throwing 13 yards to Don Hasselbeck for one of the scores and running eight for the other. John Smith contributed field goals of 50 and 43 yards, the former being the longest of his career. Meanwhile, the Redskins were unable to get off the schneid, losing to San Francisco 30-17 and slipping to 0-5 on the season. The 49ers jumped to a 7-0 lead 5:38 into the game on a 16-yard run by Ricky Patton, and then scored five minutes later when Safety Dwight Hicks returned a fumble 80 yards for a TD, the longest such score in San Francisco's history. Hicks also ran back an interception 33 yards for a touchdown. The win kept the 49ers tied for first with Los Angeles at 3-2 in the NFC West, as the Rams overtook Cleveland 27-16 on Sunday and Chicago 24-7 earlier in the week. The Bears looked as if they might rally from that loss as Quarterback Vince Evans passed for two touchdowns and ran for a third in a game against Minnesota, but Chicago's Hans Nielson missed a 26-yard field goal as time ran out, and the Vikings triumphed 24-21. That tied Minnesota for the NFC Central lead with Tampa Bay, which beat Detroit 28-10. St. Louis upset Dallas 20-17—and knocked the Cowboys from among the unbeatens—thanks to a 37-yard field goal by Neil O'Donoghue with 23 seconds left to play. The Cowboys had defeated the Cardinals six straight times. The Jets had an identical win streak against Miami, and it, too, was snapped—sort of—by a 28-28 tie (page 36). Houston ran its non-losing string against the Bengals to six straight with a 17-10 victory in which the Oilers' Earl Campbell ran for 182 yards and one TD and caught the Oilers' only complete pass—a three-yarder. Seattle, which has never beaten San Diego, lost once more to the Chargers 24-10, while Baltimore fell for the second time this season to Buffalo, 23-17, and Oakland did likewise against Denver, 17-0. The Giants lost 27-14 to Green Bay as Quarterback Lynn Dickey of the Packers was 17 of 22 for 208 yards and two TDs. As for Bum Phillips, who as a Houston coach once said, "I would have lived a lot longer if I hadn't played the Pittsburgh Steelers," there was yet another loss to the Steel Curtain. This time Bum, now the Saints' coach, lost 20-6.

GOLF—BILL ROGERS won the $250,000 Texas Open with a birdie putt on the first hole of a playoff. After regulation play, Rogers was tied with Ben Crenshaw at 266, 14 under par.

Kathy Whitworth and Donna Caponi won a $120,000 LPGA best-ball team event in Portland, Ore. in sudden death over Jo Anne Carner and Judy Rankin. The twosomes had tied at 203, 16 under par.

HORSE RACING—Angel Santiago rode RECTORY ($46.20) to a half-length victory over Royal Hierarchy in the $163,100 Paterson Stakes at The Meadowlands. The 4-year-old covered the nine furlongs in 1:49.

Galaxy Libra ($6.20), Bill Shoemaker up, won the $165,300 Man o' War Stakes at Belmont by 1¼ lengths over Match the Hatch. The 5-year-old ran the 1‚Äö√Ñ√∂‚àö√±‚àö‚à´ miles on turf in 2:14[4/5].

Gary Moore rode 4-year-old GOLD RIVER ($45.20) to a¾-length victory over Bikala in the $618,000 Prix de l'Arc de Triomphe at Longchamp in Paris, finishing the 2,400 meters in 2:35.1.

MOTOR SPORTS—RICK MEARS, averaging 108.284 mph in a Penske-Cosworth on the 3.377.0-mile course, won the Watkins Glen (N.Y.) 200 for Indy-style cars by a lap over Johnny Rutherford.

Darrell Waltrip averaged 93.091 mph in a Buick to win a $ 148,000 NASCAR 400-mile event on the five-eighths-mile North Wilkesboro (N.C.) Speedway oval. He beat Bobby Allison by one lap and 10 seconds.

POWER BOATING—PAUL CLAUSER drove a 41-foot Cougar Catamaran at an average of 78.5 mph over a 208-mile course off Dania, Fla., to win the Harbour Towne Race and the Harmsworth Trophy.

TENNIS—The United States and Argentina advanced to the Davis Cup finals with 5-0 wins over Australia and Britain, respectively.

Martina Navratilova beat Tracy Austin 6-0, 6-2 to win the $125,000 U.S. Women's Indoor Championship in Bloomington, Minn.

Gene Mayer defeated Ilie Nastase 6-3, 2-6, 6-4 to win a $150,000 tournament in Arnhem, The Netherlands. Earlier in the week, ELIOT TELTSCHER beat Brian Teacher 6-3, 7-6 to win a $200,000 tournament in San Francisco.

MILEPOSTS—AWARDED: By the International Olympic Committee, the 1988 Summer Games to Seoul, South Korea and the 1988 Winter Games to Calgary, Alberta. The IOC also added tennis and table tennis to the 1988 Games, bringing the total of Summer Olympic sports to 23.

ELECTED: To the International Olympic Committee, PIRJO HAGGMAN, 30, of Finland, a freestyle swimmer in the 1972, '76 and '80 Olympics; and FLOR ISAVA-FONSECA, 60, of Venezuela, a non-Olympian but a renowned equestrian in her native country, marking the first time that women have been elected IOC members in the 87-year history of the organization.

NAMED: As the American Soccer League's Most Valuable Player, New York Eagle Striker BILLY BOLEVIC, 29, who scored a league-record 25 goals during the regular season. Carolina Lightnin' Wing TONY SUAREZ, 25, was named the league's Rookie of the Year.

TRADED: By the New Orleans Saints, Wide Receiver WES CHANDLER, 25, to the San Diego Chargers for Wide Receiver AUNDRA THOMPSON, 28, and two 1982 draft picks. Chandler set the Saints single-season receiving record with 1,069 yards in 1979.

DIED: BRONISLAW MALINOWSKI, 30, of Poland, gold medalist in the 3,000 meter steeplechase at the 1980 Olympic Games; of injuries suffered when the car he was driving collided with a bus; in Grudzaidz, Poland.

Jack Dolph, 53, former director of CBS Sports (1959-69) and commissioner of the now-defunct American Basketball Association (1969-72); of a heart attack; in Greenwich, Conn.

Fidel LaBarba, 76, former world flyweight boxing champion (1925-27); of a heart attack; in Los Angeles.