A roundup of the week July 11-17

BOXING—FLOYD PATTERSON, 37, prepping for his Aug. 28 match against Muhammad Ali, scored a TKO over Pedro Agosto at the end of round six of their scheduled 10-rounder at the Singer Bowl in Queens, N.Y.

CHESS—In the world championship chess match in Reykjavik, Iceland, Bobby Fischer, who earlier forfeited a game by failing to appear, defeated Boris Spassky, but he still trails in games 2-1 (page 14).

DIVING—CINDY POTTER of Bloomington, Ind. captured the one-and three-meter springboard titles at the AAU outdoor diving meet in Lincoln, Neb., but fell short in her bid for a repeat of last year's trio of titles when JANET ELY of Ann Arbor, Mich. took the 10-meter platform championship. RICK EARLY of Long Beach, Calif. rallied from fourth place on his last three dives to pass defending champion Dick Rydze for the men's platform title. DON DUNFIELD, the indoor champion from Santa Clara, Calif. won the one-meter and Columbus, Ohio's MIKE FINNERAN the three-meter.

GOLF—LEE TREVINO dropped a 30-foot chip shot on the 17th hole of the final round to end Jack Nicklaus' dream of a Grand Slam with a one-stroke victory in the British Open at Muirfield (page 8).

Bob Allard, 23, of Portland, Ore., defeated Omaha's Rick Schultz 71-74 in an 18-hole playoff for the National Public Links golf title. The pair had tied at 285 after the regulation four rounds over the par-70 Coffin course in Indianapolis.

HARNESS RACING—SPEEDY CROWN ($4.20), Howard Beissinger driving, captured the 1-mile, $125,000 International Trot by scoring a three-quarters of a length triumph over Canadian-owned Fresh Yankee at Roosevelt Raceway. It was the first victory by an American horse in the race since 1964 (page 52).

Albatross, the 1971 Harness Horse of the Year, became the winningest pacer ever ($1,001,868) when he set a mile record (1:57[3/5]) for 4-year-olds competing on a half-mile track at Saratoga Springs.

HORSE RACING—QUACK ($7.20), Donald Pierce up, tied the U.S. record of 1:58[1/5] while leaving Droll Role 5½ lengths behind to win the 1-mile, $175,000 Hollywood Gold Cup at Hollywood Park. Quack joined Round Table as the only 3-year-old winners in the 33 runnings of the race.

West Coast Scout ($6.60), owned by Buffalo Bill President Ralph Wilson, raced to a six-length victory over Hitchcock in the $113,500 Haskell Handicap at Monmouth Park.

Cloudy Dawn ($11), ridden by Bill Hartack, edged favored Ruritania by half a length to take the $88,875 Dwyer Handicap at Aqueduct.

MOTOR SPORTS—EMERSON FITTIPALDI of Brazil, driving his Lotus-Ford at an average speed of 112.06, crossed the finish line 4.1 seconds ahead of Jackie Stewart to win the British Grand Prix in Brands Hatch. Fittipaldi, who had already won the Spanish and Belgian Grand Prix, increased his point lead over Stewart in the World Driving Championship to 16.

Joe Leonard, driving a Parnelli-Offenhauser, sped to victory in the Michigan 200 at the Michigan International Speedway in Cambridge Junction. Earlier, in gaining the pole position for the fifth time in five races in this year's Championship Trail of the United States Auto Club, Bobby Un-ser recorded the fastest qualifying lap in the history of auto racing—199.778 mph.

ROWING—JIM DIETZ of the New York Athletic Club scored an impressive 10-length victory over Jon Van Blom to win the single sculls in the 99th annual national rowing championships on the Schuylkill River in Philadelphia. LARRY HOUGH and DICK LYON, former Olympians representing the Stanford Rowing Association, finished first in a field of five in the elite pair-without-coxswain event.

SAILING—ALAN HOLT of Bellevue, Wash., using his business partner Richard Gates as his crew, gained an Olympic berth in the Star class when he breezed to two firsts, two seconds and two thirds in week-long trials on San Francisco Bay.

TENNIS—In the National Amateur Clay Court Championships in Atlanta, ROSS WALKER of London defeated James DeLaney of Potomac, Md., 6-2, 7-6, 6-7, 6-4 for the men's singles title while JANICE METCALF of Claremont, Calif., the defending champion, downed favored Jeanne Evert, Chris's younger sister, 6-4, 3-6, 6-1 for the women's crown.

TRACK & FIELD—DAVID BEDFORD of England sped to the second fastest 5,000 meters ever (13:17.2), only .6 off the world mark set six years ago by Australia's Ron Clarke. In a second race at the Amateur Athletic Association Championships in London's Crystal Palace, Bedford ran the fastest 10,000 meter time in the world this year (27:52.8).

MILEPOSTS—APPROVED: By the National Basketball Association's board of governors, the sale of the BOSTON CELTICS to Robert Schmertz, who also owns the World Hockey Association's New England Whalers. At the same time the board rejected the sale of the CHICAGO BULLS to a group headed by Marvin L. Fishman, one of the original owners of the Milwaukee Bucks, pending his acquisition of a lease for use of a Chicago arena. Arthur Wirtz, owner of the Chicago Stadium, is involved in another bid for the team.

HIRED: As head basketball coach at North Adams (Mass.) State College, LARRY SIEGFRIED, 33, former Boston Celtic guard who played on five world championship teams (1964-66, '68-69) in his nine-year career. Siegfried was a player for the Atlanta Hawks last season.

NAMED: As president of Charlie Finley's Memphis franchise in the ABA, ADOLPH RUPP, 70, the winningest collegiate basketball coach in history. In a 42-year career at Kentucky, Rupp's teams won 879 games, four NCAA titles and one NIT championship. He was forced to step down after last season when he reached the university's mandatory retirement age. At the same time Finley announced that a new name for the team, TAMS, had been selected from over 15,000 suggestions submitted by fans: "T is for Tennessee, A is for Arkansas, which is right across the river, and M is for Mississippi, which is right across the Street," he explained.

RATIFIED: By a 232-15 vote of the International Lawn Tennis Federation, the agreement that ends the war between Lamar Hunt's World Championship Tennis and the ILTF. WCT pros will be allowed to compete at the United States Open championships at Forest Hills in August.

SENTENCED: EMPRISE, the giant sports concession corporation, and six individuals (including two known Mafia figures), in California for their roles in hiding the underworld ownership of a Las Vegas casino. Emprise was fined the maximum penalty of $10,000. Anthony J. Zerilli, the former president of Hazel Park racetrack in Detroit, and Michael Polizzi were fined a total of $80,000 and sentenced to jail for four years apiece.

TRADED: By Carroll Rosenbloom, the BALTIMORE COLTS, to Robert J. Irsay for the LOS ANGELES RAMS, which Irsay had just purchased from the estate of Daniel F. Reeves for $19 million, the largest amount ever paid for a professional sports team. Rosenbloom has wanted to leave Baltimore for over a year but needed the no-cash transaction with Irsay to avoid paying capital gains taxes of approximately $4.4 million. Don Klosterman, Colt general manager, will move to Los Angeles and be replaced in Baltimore by Joe Thomas, former Miami Dolphin personnel director.