A Roundup Of The Week Sept. 19-25

PRO FOOTBALL—The Bengals, the Bills and the Rams all coasted to victories to become the NFL 's only 4-0 teams. Cincinnati 's 24-17 win over the Browns kept the Bengals in sole possession of first place in the AFC Central . Cleveland held Boomer Esiason , the league's top passer, to only eight completions, but Cincinnati rushed for 213 yards. AFC East -leading Buffalo, off to its best start since 1980, beat the Steelers 36-28. The Bills' Scott Norwood converted all five of his field goal attempts to run his streak to a team-record 12. L.A. got five TD passes from Jim Everett as it defeated the Giants 45-31. The victory kept the Rams a game in front of the second-place Saints and 49ers in the NFC West . San Francisco manhandled the Seahawks 38-7 as Joe Montana threw for 302 yards and four touchdowns, three of them to his favorite target, Jerry Rice . Dean Biasucci kicked five field goals as the Colts won for the first time, 15-13 over Miami . The Packers lost to Chicago 24-6 and now are the last winless team. The Oilers trounced the Patriots 31-6, while the Jets beat the Lions 17-10. Babe Laufenburg's nine-yard touchdown pass to Lionel James with 52 seconds to play gave the Chargers a 24-23 victory over the Chiefs . The Vikings, co-leaders with Chicago in the NFC Central , escaped with a 23-21 victory over the Eagles when Chuck Nelson kicked a 32-yard field goal with 15 seconds to go. The Saints nipped the Buccaneers 13-9, while the Cardinals upset the Redskins 30-21 for win No. 1 in Phoenix . Washington reserve quarterback Mark Rypien , starting in place of Doug Williams , who is out for at least a month after an appendectomy, threw for 303 yards and three touchdowns in his first NFL start. The Redskins ' defeat left them in a four-way tie for first in the NFC East with the Cardinals, Giants and Cowboys. Dallas rallied to beat the Falcons 26-20 on Steve Pelleur's 29-yard touchdown pass to Ray Alexander with 1:48 left (page 98).

GOLF—ROSIE JONES shot an even-par 72 in the final round to win the 54-hole LPGA Santa Barbara Open by three strokes over Missie McGeorge. Jones had a four-under-par 212 to win $45,000.

Bill Glasson won the B.C. Open and $90,000 in Endicott, N.Y., by shooting a 16-under-par 268, two strokes better than runners-up Bruce Lietzke and Wayne Levi .

HARNESS RACING—BJ SCOOT ($6), Michel LaChance in the sulky, beat Threefold by 1� lengths in the final heat to win the Little Brown Jug, the second jewel in the Triple Crown for 3-year-old pacers, at the Delaware County ( Ohio ) Fair-grounds. BJ Scoot, a colt, covered the mile in 1:52[3/5] and collected $147,030.

Leah Almahurst ($2.80), a 3-year-old filly driven by Bill Fahy, won the Juggette at the Delaware County Fairgrounds in straight heats. She paced the mile in each heat in 1:56[2/5] and beat So Cozy in the final to earn $81,946.

HORSE RACING—SUNSHINE FOREVER ($5.40), ridden by Angel Cordero Jr. , won the Man o' War Stakes for 3-year-olds and older at Belmont by a half length over Pay The Butler. Sunshine Forever covered the 1? miles in 2:14[2/5] to earn $357,600.

Seeking the gold ($3.40), ridden by Pat Day , won the Super Derby at Louisiana Downs by a neck over Happyasalark Tomas. The winner, a 3-year-old colt, ran the 1� miles in 2:03[4/5] and earned $600,000.

MOTOR SPORTS—ALAIN PROST, driving a McLaren- Honda , won the Portuguese Grand Prix by 9.553 seconds over Ivan Capelli, in a March-Judd. Prost, who took over first place in the world driver standings from McLaren teammate Ayrton Senna , completed 70 laps on the Estoril 2.703-mile road circuit in 1:37:40.95.

Darrell Waltrip , in a Chevrolet, won a 500-lap NASCAR event in Martinsville , Va., beating Alan Kulwicki , in a Ford, by 5.2 seconds. Waltrip averaged 74.988 mph on the .526-mile Martinsville Speedway oval to claim the $48,750 top prize.

TENNIS—Fourth-seeded MIKAEL PERNFORS defeated Andre Agassi , the top seed, 6-2, 7-5 in the final match to win a men's tour event and $59,500 in Los Angeles .