A roundup of the week June 29-July 5

BOXING—SAMMY SERRANO retained his WBA junior lightweight championship with a unanimous decision over Leonel Hernandez in Caracas.

CREW—At the 142nd Royal Henley Regatta in Henley-on-Thames, England, the Oxford and Thames Tradesmen crew was the surprise winner of the Challenge Cup for heavyweight eights. The 1980 Rowing Club, a U.S. team made up of members of the country's 1980 Olympic squad, became the first women's crew to win an event at Henley, in the coxed fours. Other U.S. winners were: the University of Washington junior varsity eight, which won the Ladies Challenge Cup; the Charles River Rowing Association, winner of the Thames Cup; and Holy Spirit High School of Absecon, N.J., which won the Princess Elizabeth Cup for Schools.

GOLF—ED FIORI shot a final-round five-under-par 67 for an 11-under-par total of 277 to win the $300,000 Western Open in Oak Brook, Ill. by four strokes over Jim Simons, Greg Powers and Jim Colbert.

Jan Stephenson shot a 10-under-par 278 to win the $200,000 Peter Jackson LPGA 72-hole tournament in Dorion, Quebec by one shot over Nancy Lopez-Melton and Pat Bradley.

HORSE RACING—TEMPERENCE HILL ($8.40), ridden by Donald MacBeth, won the $167,700 Suburban Handicap at Belmont by a head over Ring of Light. The 4-year-old covered the 1¼ miles in 2:02.

MOTOR SPORTS—CALE YARBOROUGH averaged 142.588 mph in his Buick Regal to win the $260,610 Firecracker 400 NASCAR race in Daytona Beach, Fla. for the fourth time.

Alain Prost, driving a Renault, won the rain-delayed French Grand Prix in Dijon, averaging 118.23 mph over 188.8 miles on the 2.36-mile Coujon-Prenois racecourse.

ROAD RACING—CRAIG VIRGIN won the 10-km Peachtree Road Race in Atlanta, beating Rod Dixon by eight seconds. His time of 28:03.4 was an American record for the distance.

SOCCER—NASL: In 12 years as a player and a coach with Dallas, Mike Renshaw bled Tornado red, white and blue. Even his boss, general manager Kent Kramer, described him as "one of the most enthusiastic and enjoyable people I have met in sports." But three days after the Tornado extended its league-record losing streak to 17 with a 2-1 loss to Calgary, Kramer fired Renshaw, apparently deciding that this nice guy wouldn't finish last. Hours after Renshaw's dismissal, the Tornado lost its 18th straight, a 2-1 decision to Edmonton, thereby falling to 2-19 in the season and spoiling the debut of interim Coach Peter Short. Although the Roughnecks' record was a more respectable 11-10, Tulsa management, disappointed by an offense that had scored only 7 goals in its last 5 games, replaced Charlie Mitchell with his assistant, Terry Hennessey. Tulsa then beat Toronto 3-0 as Goalie Zeljko Bilecki got his sixth shutout, but lost 3-2 to the Eastern Division-leading Cosmos. Perhaps Renshaw and Mitchell can both take heart. Timo Liekoski, who two weeks ago was fired as Edmonton's coach, was reinstated last week by owner Peter Pocklington after Pocklington decided he'd made "a mistake." On the field, Johan Cruyff returned to the Washington Diplomat lineup, but a groin injury limited his playing time in the Diplomats' 3-2 victory over San Diego and their loss by the same score to Seattle. Chicago (Central), Los Angeles (Western) and Vancouver (Northwest) retained their respective division leads. Atlanta and Fort Lauderdale are tied for the Southern Division lead.

ASL: In the all-star game at the Silverdome in Pontiac, Mich., the host, Detroit Express, lost 2-0 to a team of stars from the league's seven other teams. The Express' luck did not improve when regular-season play resumed. It lost to Carolina 2-1 to move within 14 points of the first-place Lightnin' in the Freedom Conference. Pennsylvania beat the New York Eagles 2-1 and tied Rochester 0-0 to maintain a 26-point lead in the Liberty Conference.

SWIMMING—UTE GEWENIGER of East Germany set two world records in East Berlin. Her clocking of 1:09.39 in the 100-meter breaststroke surpassed by .13 of a second the mark she established on April 21 of this year, and her time of 2:11.73 in the 200-meter IM was 1.27 seconds better than the record set by her countrywoman, Petra Schneider, in 1980.

TENNIS—JOHN McENROE defeated Bjorn Borg 4-6, 7-6, 7-6, 6-4 to win the Wimbledon men's singles championship, and CHRIS EVERT LLOYD won her first women's singles title since 1976 by defeating Hana Mandlikova 6-2, 6-2. McENROE and PETER FLEMING beat Bob Lutz and Stan Smith 6-4, 6-4, 6-4 to win the men's doubles; MARTINA NAVRATILOVA and PAM SHRIVER triumphed in women's doubles, 6-3, 7-6 over Kathy Jordan and Anne Smith; and FREW McMILLAN and BETTY STOVE scored a 4-6, 7-6, 6-3 victory over John and Tracy Austin in mixed doubles.

MILEPOSTS—AWARDED: To the Pittsburgh Penguins, by an NHL arbitrator, Hartford Whaler Forward PAT BOUTETTE, 29, and a junior hockey league player as compensation for the Whalers' signing of free agent Goalie GREG MILLEN, on June 15.

FOUND IN CONTEMPT: Former jockey CON ERRICO, 59, by U.S. District Court Judge Mark Costantino, for refusing to testify before a federal grand jury in New York investigating alleged fixing of horse races. Earlier, the U.S. Supreme Court refused to review Errico's May 1980 conviction on racketeering charges. Errico must serve the contempt sentence, which could run as long as nine months, before beginning his 10-year sentence for racketeering.

SIGNED: By the Cleveland Cavaliers, former Indiana Pacer Center JAMES EDWARDS, 25, to a four-year contract worth a reported $700,000 per annum. Last season the 7'1" Edwards scored 15.6 points and had seven rebounds a game for the Pacers.

TRADED: By the NHL Philadelphia Flyers, Center RICK MacLEISH, 31, two minor league players and the Flyers' first three selections in the June 1982 amateur draft, to the Hartford Whalers for a pair of minor-leaguers and Hartford's first and third picks in the draft. In 10 seasons with the Flyers, MacLeish scored 320 goals and had 355 assists. Last year he was their second-leading scorer, with 38 goals and 36 assists.

By the St. Louis Blues, Goaltender ED STANIOWSKI, Defenseman BRYAN MAXWELL and Forward PAUL MacLEAN, to the Winnipeg Jets for Defenseman SCOTT CAMPBELL and Forward JOHN MARKELL.

DIED: Miami Dolphins Linebacker RUSSELL (Rusty) CHAMBERS, 27, of injuries suffered in an automobile crash, 10 miles from his hometown of Loranger, La. Chambers, who was originally signed as a free agent out of Tulane by New Orleans in 1976, was the Dolphins' leading tackier in 1978 and 1979.