A roundup of the sports information of the week

ARCHERY—Americans won three of the four titles in the world field archery championship finals in Rhondda, Wales. The freestyle events went to STEPHEN LIEBERMAN, 19, of Reading, Pa., and MRS. EUNICE SCHEWE of Rockford, Ill. The men's and women's bare-bow championships were won by ELMER MOORE of Newport News, Va. and MRS. SONJA JOHNASSON of Sweden.

FLYING—SHEILA SCOTT of London, piloting a Piper Comanche 260, averaged 172.6 mph on a 20-hour, 3,481.26-mile solo flight from New York City to Gatwick, Surrey to establish new world speed records for small planes in the general and feminine divisions.

GOLF—British Open champion JACK NICKLAUS recovered from a shaky start in the final round, fired three birdies over the closing nine at the Firestone Country Club in Akron, Ohio, and won the $50,000 first prize in the World Series of Golf. His 36-hole total of 136 was three strokes better than PGA champ Dave Stockton and Masters winner Billy Casper, who won $11,250 each, and five better than U.S. Open champion Tony Jacklin, whose fourth-place finish earned him $5,000.

Joanne Gunderson Carner took her first tournament since turning pro when she won the first hole of a sudden-death playoff in the Wendell-West Open in Ocean Shores, Wash. Miss Carner, who received a check of $6,000, shot a three-under-par 69 on the final round of regulation play.

HARNESS RACING—DAYAN ($6.80), a 4-year-old bay driven by Billy Myer, won the mile-and-a-quarter Gotham Trot at Yonkers Raceway by three quarters of a length over Fresh Yankee, with Une de Mai third. The winner's time in the $50,000 event was 2:33[2/5].

HOPSCOTCH—Three Flint, Mich. teen-agers, PAUL SIEGEL, ROBERT McINNIS and JOHN JARRARD, added two hours, 40 minutes and 20 seconds to the listed world endurance record of 24 hours. Two other participants in the marathon dropped out in the early going because of sore legs and exhaustion. The old record had been set in 1968 by 10 college students in Britain.

HORSE RACING—Unbeaten NIJINSKY charged to victory in the $131,628 St. Leger Stakes in Doncaster, England, completing his conquest of the English Triple Crown (page 28).

Rocket Wrangler ($5.80), a 2-year-old colt bought for $6,000 by John R. Adams six months ago, won the world's richest horse race, the $670,000 All-American Futurity (for quarter horses) in Ruidoso, N. Mex. The winner's time in the 440-yard sprint was 20.09 seconds, to give him the $178,488 first prize by a nose over Bunny Bid.

Leading over the entire 1‚⅛-mile distance, DISTINCTIVE ($38) stayed strong at the finish to gain a half-length victory over Hydrologist in the Governor Nicholls at Belmont Park. For his fourth stakes victory of the year, Herbert Allen's 4-year-old earned $75,920 from a purse of $116,800. Plymouth finished third.

HORSE SHOW—ACE'S SENSATION, a 6-year-old stallion owned by Sugarload Farms of Atlanta, lived up to his name by taking the world championship at the Tennessee Walking Horse National Celebration in Shelbyville, Tenn. to complete a comeback (following injuries to both front legs) in June.

MOTORCYCLING—Italy's GIACOMO AGOSTINI raced to his 10th straight victory in the 500-cc Monza Motorcycling Grand Prix. He has not lost in Grand Prix competition this year and has already clinched two world titles.

MOTOR SPORTS—The inaugural California 500 at the new Ontario Motor Speedway brought a $155,884 paycheck to JIM McELREATH, who powered his turbocharged Coyote-Ford to a two-second victory over Art Pollard (page 30).

The well-established Southern 500 stock-car race in Darlington, S.C. went to BUDDY BAKER, who averaged 128.817 mph around the 1.3-mile, high-banked oval. Bobby Isaac, also in a Dodge, finished second to increase his leading NASCAR point total to 3,039.

Don Prudhomme of Granada Hills, Calif. won his third national drag-racing championship with a 6.456-second clocking over the quarter-mile track at Indianapolis Raceway Park. Second was Jim Nicoll.

SOCCER—NORTH AMERICAN LEAGUE: The underdog ROCHESTER LANCERS stopped Washington's championship string at two, outscoring the Darts 4-3 in two playoff games. The first game, played in Rochester, was the most decisive as the Lancers won 3-0. The following week in Washington they lost 3-1 but their overall scoring advantage gave them the title.

SWIMMING—ROLAND MATTHES spearheaded an East German assault on several world records in the European championships. Matthes led his team to a new 400-medley relay standard of 3:54.4, during which he set an individual backstroke mark of 58.9. Later, he lowered the 200-meter backstroke record to 2:06.1. EAST GERMANY's girls also turned in a world record performance with a 4:00.8 clocking in the 400-meter freestyle relay. Two other standards were set by GUNNAR LARSSON of Sweden, who took the 400-meter freestyle in 4:02.6 and the 200-meter individual medley in 2:09.3.

TENNIS—Australians KEN ROSEWALL and MARGARET COURT won the men's and women's titles in the U.S. Open at Forest Hills. Rosewall defeated countryman Tony Roche, 2-6, 6-4, 7-6, 6-3. Mrs. Court's 6-2, 2-6, 6-1 victory over Rosemary Casals made her history's second winner of the Grand Slam of women's tennis (page 26).

TRACK & FIELD—East Germany's BURGLINDE POLLACK, scoring a total of 5,406 points, set a new world record in the women's pentathlon at a meet in Berlin.

WEIGHT LIFTING—Soviet Lifter YURI YABLONSKY set a world heavyweight record in a Russian meet by pressing 435.6 pounds, breaking the old mark by 5.8 pounds. His total lift, including clean-and-jerk and snatch, was 1,232 pounds.

MILEPOSTS—SIGNED: To fight in Atlanta on Oct. 26, former Heavyweight Champion MUHAMMAD ALI and the current number one contender, JERRY QUARRY.

SUSPENDED: DENNY McLAIN, Detroit Tiger pitcher, by Baseball Commissioner Bowie Kuhn, who reinvoked McLain's earlier three-month suspension "indefinitely" because of "allegations regarding McLain's conduct with respect to the Detroit management and information that on occasions McLain has carried a gun." Further proceedings into McLain's third suspension within a year will not be held until after the end of the season.

SWITCHED: From the University of North Carolina to the University of Maryland, the nation's prize basketball recruit, 6'11" Tom McMillen, who holds the Pennsylvania prep scoring record with 3,608 points.

HIRED: By the Southeastern Conference, a special investigator to look into reports that a University of Kentucky football player and a former player at the University of Alabama were offered lucrative financial benefits while being recruited.

DIED: ED SYNAKOWSKI, quarterback for the University of Wyoming, who drowned when the boat in which he and his brother Mike were fishing capsized in Lake Hattie, near Laramie.

DIED: HARMON J. (Butch) DUHE, 21-year-old reserve quarterback at Louisiana State University; of a ruptured blood vessel in the brain, an injury doctors say was unrelated to football.