A roundup of the sports information of the week

ARCHERY—BILL' BEDNAR of Suffield, Ohio rallied from a tie for fourth in the final round to win his second Professional Archers Association national championship in three years in Detroit. In the women's division MARGARET TILLBERRY of Springfield, Ohio led through all four rounds, set a tournament record for women of 1,117 points and a one-round record of 286 in taking her third straight title.

BOATING—Morton H. Engel's 40-foot yawl HUNTRESS, from Mamaroneck, N.Y., won the 360-mile Marblehead (Mass.)-to-Halifax (N.S.) race with a corrected time of 45 hours 10 minutes 1 second, 25 minutes and 16 seconds ahead of the 37-foot yawl Goodly Fere.

BOXING—CARLOS HERNANDEZ of Venezuela used a left to the chin to drop Percy Hayles of Jamaica to a sitting position, where he remained for the count, as Hernandez successfully defended his world junior welterweight title for the second time in Kingston, Jamaica. The knockout came at 2 minutes 53 seconds of the third round.

FENCING—At the world championships in Paris, JERZY PAWLOWSKI, a Pole, won the men's individual saber event, defeating Miklos Meszena of Hungary in the last match of the six-man final pool.

Zoltan Nemere of Hungary won the men's épée title, taking four bouts in the final round robin, and JEAN-CLAUDE MAGNAN of France was the winner in the men's foil division.

GOLF—PETER THOMSON, an Australian pro who has avoided the American tour in recent years, won his fifth British Open title on the Royal Birkdale course in Southport, England, with rounds of 74-68-72-71 for a seven-under-par 285 (page 16). Brian Huggett of Wales and Christy O'Connor of Ireland tied for second at 287. Roberto de Vicenzo of Argentina finished fourth and defending champion Tony Lema fifth.

Kathy Whitworth scored her fourth Ladies PGA tour victory of the year when she won the $10,000 Midwest Open in Columbus with a final-round 70, two under par, for a 54-hole 219. Sandra Haynie finished second, one stroke behind.

HARNESS RACING—Odds-on (3-10) favorite Speedy Scot broke on the second turn in the $100,000 International Trot at Roosevelt Raceway and finished fifth, five lengths behind Sweden's victorious long shot, PLUVIER III, which paid $62.40. Second favorite Steno, from Italy, also broke, but rallied in the stretch to finish second.

Dartmouth, driven by Ralph Baldwin, equaled the world record of 2:00[1/5] for trotting stallions on a half-mile track in winning the $12,700 Titan Cup.

Starting from the 12th post position, BRET HANOVER ($2.40) took the early lead, paced the last quarter in 29[1/5] and easily won the $10,000 Scioto Downs Challenge Stake, his 31st straight victory.

HORSE RACING—KELSO ($2.60), in his second start of the year won the 1 1/16-mile, $21,850 Diamond State Handicap at Delaware Park by 3¼ lengths in 1:42 2/5, three-fifths of a second off the track record. The $14,202 winner's share brought Kelso's record career earnings to $1,908,064.

Favored TERRY'S SECRET ($7.20), held off the lead until the final turn of the mile-and-a-quarter $125,700 Hollywood Derby at Hollywood Park, drew away in the stretch to win by 8½ lengths.

HORSE SHOWS—Germany's HERMANN SCHRIDDE, the only horseman to complete the final two rounds without a fault, won the European jumping championship at the International Horse Show in Aachen, Germany. Nelson Pessoa of Brazil took second. ITALY'S team successfully defended its Prize of Nations championship over a 710-meter, 17-jump course.

MOTOR SPORTS—JIM CLARK of Scotland drove to his fourth and fifth straight wins, the British Grand Prix at Silverstone, England and the Grand Prix of France in Rouen. His time in England for 234.16 miles was 2:05:25.4, just three seconds ahead of second finisher Graham Hill. In France his 1:48:29.1 for 200 miles beat Graham Hill's 1:48:48.6 and Jack Brabham's 1:50:02.9.

Junior Johnson of Ronda, N.C. averaged just under 70 mph to win the 400-lap, 150-mile NASCAR Grand National race in Manassas, Va., his 10th victory in the 21 Grand National races he has entered this season.

Driving a high-powered, hard-luck Novi, JIM HURTUBISE set a world speed record for a 1½-mile closed track of 164.500 mph during tire tests for the August 1 Championship 250 at Atlanta International Raceway.

ROWING—The Ratzeburg rowing club of West Germany went one up on its Olympic and Henley rivals, the Vesper Boat Club of Philadelphia, with a six-inch victory on the Ratzeburgers' home waters, the K√ºchensee (page 18).

Harvard's eight pulled away from the Bled Mornar-Argo boat of Yugoslavia in the last 300 meters to win the 2,000-meter featured race of Lucerne's Red Lake Regatta by two-thirds of a length. The winning time was 5:55.34. The DUKLA PRAHA CLUB of Czechoslovakia won the fours-withcox event in 6:36.92, leaving the Henley winner, Leander Club of Oxford, far behind in fifth place.

SOARING—DEAN SVEC, 41-year-old concrete-block manufacturer of Bedford, Ohio, scored 6,241 points in seven days of competition to win the U.S. Soaring Championship. Svec finished 17 points behind Hans Grosse of Germany, but foreigners are not eligible for the title.

TENNIS—The RICHEYS from Big D swept the singles titles at the Western Open tournament in Milwaukee. Cliff, 18, first beat Dennis Ralston, then downed Marty Riessen of Evanston, Ill. 5-7, 6-4, 6-3, 6-3 in the finals; Nancy, 22, overwhelmed Carole Caldwell Graebner of Beech wood, Ohio 6-1, 6-0.

Europe's leading player, MANUEL SANTANA of Spain, a clay-court specialist, upset Wimbledon champion Roy Emerson in stunning fashion 6-1, 6-1, 6-4 on the clay courts of the Swedish championships in Baastad. In reaching the finals Santana had also surprised Australia's No. 2 man, Fred Stolle, 6-3, 6-4, 6-4. Stolle and Emerson pulled themselves together to take the doubles from Santana and Luis Arilla 6-3, 6-8, 6-4.

TRACK & FIELD—Australia's amazing distance runner, RON CLARKE, who has already set four world marks this year, broke the 13-minute barrier for three miles at the AAU championships in London. His time of 12 minutes 52.4 seconds lowered his still-pending mark, set only a month ago in Los Angeles, by eight full seconds. Nineteen-year-old Gerry Lindgren stayed right behind Clarke for 2½ miles but when he challenged at that point the Australian accelerated, ran a 64-second 11th lap and won going away. Lindgren finished second, 80 yards back, but his 13:04.2 set an American citizens record. Clarke ran two races earlier in the week, one a winning but unsuccessful attempt in Oslo to better Michel Jazy's new 3,000-meter time, and the other in Stockholm, a fast 5,000 meters in 13 minutes 26.4 seconds, only six-tenths of a second off his own world mark.

Peter Snell announced earls in the week that he would retire if he did not win the 1,500-meter run at the International Rosicky Memorial meet in Prague but changed his mind after finishing third in 3:42.6. "I will continue to run and I am not going to quit before I reach my top form again," he said. The Prague 1,500 was Snell's ninth straight loss.

MILEPOSTS—SIGNED: Into law by Governor John N. Dempsey of Connecticut, a bill passed by large margins in both houses of the state's legislature to bar professional boxing until it comes under federal regulation.

SHELVED: For one year by 'he International Lawn Tennis Federation, a Russian proposal to expel South Africa from the federation because of its whites-only membership policy. The ILTF Committee of Management will hold negotiations with the two South African tennis associations, white and non-white, in an attempt to bring about a merger during the year.

DIED: Lieut. RONALD ZINN, 26, 1962 graduate of West Point and twice a member of U.S. Olympic teams, of injuries sustained in combat north of Saigon, Vietnam. Zinn's sixth-place finish in the 20-kilometer (12½ miles) walk at Tokyo last year was the best by an American in 40 years and his time (1:32:43) was the fastest ever walked by an American. In addition, at his death he held American records for the indoor one mile and for the outdoor two. three, four and five miles and the 4,000 meters.

DIED: DICK WILSON, 62, golf course architect, of pulmonary embolism in Boynton Beach, Fla. Among his best-known courses are Pine Tree and the two PGA courses in Palm Beach, Fla., Doral in Miami, and Laurel Valley in Ligonier, Pa., site of this year's PGA Championship.