A Roundup of the Week Oct. 24-30

BOXING—JULIO CÉSAR CHAVEZ won a unanimous technical decision over Josè Luis Ramírez in Las Vegas to unify the WBA and WBC lightweight titles. The scheduled 12-round bout was stopped in the 11th after Ramírez suffered a gash on his scalp when he and Chàvez butted heads (page 36).

PRO FOOTBALL—The Bears' No. 1-ranked defense suffocated the 49ers in a 10-9 Monday night win but then choked on former Chicago quarterback Doug Flutie's passing on Sunday. Flutie had four touchdown throws, including an 80-yarder on the Patriots' first play from scrimmage, as New England drubbed the NFC Central-leading Bears 30-7. But wins by the 8-1 Bills, 5-3-1 Jets and 5-4 Dolphins left the Patriots ahead of only the idle Colts in the AFC East. Buffalo's defense dominated in a 28-0 defeat of the Packers, producing six sacks, a 78-yard interception return for a touchdown by free safety Mark Kelso and a fumble recovery by defensive end Leon Seals for another touchdown. New York cornerback John Booty blocked a punt to set up a five-yard Freeman McNeil touchdown run that clinched the Jets' first victory, by a 24-20 score, in 10 meetings with the 2-7 Steelers. Miami turned three recoveries into two touchdowns and a field goal in dealing the Buccaneers their fourth loss, 17-14, in as many weeks, while the Falcons broke their five-game losing streak with a 27-24 comeback win over the Eagles. Second-year Atlanta quarterback Chris Miller threw for three touchdowns for the first time in his career. Mike Lansford kicked four field goals to give the Rams not only a 12-10 victory over the Saints but also a share of the NFC West lead with 7-2 New Orleans. Elsewhere in the NFC, the Cardinals came from behind to beat the Cowboys 16-10 and jump into a tie for second place in the East behind the Giants, who picked up a 13-10 victory when the Lions Garry James fumbled a handoff on the first play during overtime to set up a 33-yard field goal by Paul McFadden. Forty-Niner Steve Young scrambled 49 yards for a touchdown with 1:58 left to bring San Francisco from behind for the third time in the second half and beat the Vikings 24-21. The Seahawks inched ahead of the idle Broncos into sole possession of first place in the AFC West as rookie Kelly Stouffer passed for two touchdowns in a 17-14 defeat of the Chargers. Marcus Allen overtook Fred Biletnikoff as the Raiders' alltime leading touchdown scorer when he got his 78th on a one-yard dive late in the first half of a 17-10 victory over the Chiefs. The Browns were 23-16 victors over the AFC Central-leading Bengals (page 30).

GOLF—BOB LOHR birdied the 72nd hole to force a playoff with Chip Beck en route to winning $126,000 and a PGA Tour event in Lake Buena Vista, Fla., on the fifth extra hole. Lohr and Beck finished regulation play with identical scores of 25 under-par 263.

HARNESS RACING—CAMTASTIC ($2.50), driven by Bill O'Donnell, beat Concussion by 3¼ lengths to win the Breeders Crown Championship, at Mohawk Raceway. The 3-year-old colt covered the mile in 1:55[1/5] and won $453,274.

HOCKEY—With a 7-1 victory over the Sabres, in which Whaler goalie Peter Sidorkiewicz made 37 saves, and a win over and a loss to the Devils, Hartford broke out of the Adams Division cellar and climbed to third place behind the Bruins and the Sabres. The Rangers, meanwhile, ran their winning streak to seven games with a 9-2 victory over the Penguins to take a three-point lead in the Patrick Division. Although the Maple Leafs maintained their six-point lead in the Norris Division, their undefeated streak was stopped at six when the second-place Blues beat them 3-2. Toronto came back from a two-goal deficit midway through the second period to tie the score, but St. Louis rookie right wing Steve Tuttle broke the Leafs' momentum when he scored the game-winning goal on a rebound with 6:17 remaining in the game. The Kings finally had some success on the road, where they had yet to win this season, and the Jets finally had big days at the turnstiles when a Wayne Gretzkyled L.A. played twice in Winnipeg. The Kings split with the Jets, so the Flames retained the Smythe Division lead after losing 6-1 to Pittsburgh and 2-1 to the Canucks and tying the Capitals 2-2.

HORSE RACING—IRISH ACTOR ($32.20), ridden by Eddie Maple, won the Young America by 1½ lengths over The Boss, at the Meadowlands. The 2-year-old colt ran the 1[1/16] miles in 1:44[4/5] to earn $300,000.

MARATHON—ALEJANDRO CRUZ of Mexico and LISA WEIDENBACH of the U.S. won the men's and women's divisions of the Chicago Marathon, finishing in 2:08:57 and 2:29:17, respectively.

TENNIS—AMOS MANSDORF beat Brad Gilbert 6-3, 6-2, 6-3 to win the Paris Open and $262,000.

Steffi Graf defeated Manuela Maleeva 6-2, 6-0 to win a women's tour event and earn $50,000 in Brighton, England.

MILEPOSTS—ANNOUNCED: By the NFL, a revised steroid policy to go into effect next season. A player who tests positive for steroids once will receive treatment and become subject to further urinalysis. A second positive test will bring on a 30-day suspension, and a third could result in the player's being banned by the league (page 25).

FIRED: By the Winnipeg Jets, vice-president and general manager John Ferguson, whose team was off to a 3-4-2 start.

SUSPENDED: Indefinitely with pay, by the Canadian Track and Field Association, CHARLIE FRANCIS, 40, sprint coach of the Canadian Olympic team that included Ben Johnson, who tested positive for anabolic steroids at the Seoul Olympics. Francis is Johnson's personal coach as well. The association also ratified the International Amateur Athletic Federation's two-year suspension of Johnson.

TRADED: By the San Diego Padres, pitchers JIMMY JONES, 24, and LANCE McCULLERS, 24, and outfielder STAN JEFFERSON, 25, to the New York Yankees for first baseman-outfielder JACK CLARK, 32, and pitcher PAT CLEMENTS, 26; by the Detroit Tigers, pitcher WALT TERRELL, 30, to the Padres for infielders CHRIS BROWN, 27, and KEITH MORELAND, 34; by the Philadelphia Phillies, pitcher SHANE RAWLEY, 33, and $125,000 to the Minnesota Twins for second baseman TOM HERR, 32, outfielder ERIC BULLOCK, 28, and catcher TOM NIETO, 28.

DIED: CHARLES (Boobie) CLARK, 37, former running back for the Cincinnati Bengals (1973-78) and the Houston Oilers (1979-80); of a blood clot in his left lung; in Jacksonville. Clark was named AFC Rookie of the Year in 1973, when he rushed for 988 yards and eight touchdowns, and led the team in rushing in 1975 and '76.

Bob Carey, 58, former All-America end and captain at Michigan State (1949-51) who also played for the Los Angeles Rams (1952, '54, '56) and the Chicago Bears (1958); after a brief illness; in Cincinnati.

Luther (Wimpy) Lassiter, 69, six-time world billiards champion; of heart failure; in Elizabeth City, N.C.

Mary Elizabeth Tippett, 82, noted thoroughbred owner and breeder; in Upperville, Va.