BILLIARDS—LARRY LISCIOTTI of Old Saybrook, Conn. won the $50,000 World Open Pocket Billiard Championship in Asbury Park, N.J., beating Steve Mizerak of Perth Amboy, N.J. 150-108 (page 68).

BOWLING—JIM FRAZIER of Spokane, Wash. won his first PBA title when he defeated Mark Roth of Staten Island, N.Y. 233-215 in the $60,000 New England Open in Cranston, R.I.

Patty Costello of Scranton, Pa. beat Jeanette Robinson of Flint, Mich. 246-221 to win the $20,000 Greater Miami PWBA Classic.

DIVING—CYNTHIA McINGVALE of Dallas won her 23rd and 24th national titles at the AAU outdoor diving championships in Decatur, Ala., as she successfully defended her one-meter springboard crown and won the three-meter championship. Jenni Chandler, the three-meter gold medalist at Montreal, did not qualify for the finals in her specialty and placed seventh in the one-meter. JIM KENNEDY of Findlay, Ohio took the men's three-meter and one-meter springboard championships. KENT VOSLER, who was second in the three-meter springboard, won the men's 10-meter platform, and BARBARA WEINSTEIN of Cincinnati won the women's 10-meter.

PRO FOOTBALL—Replacing the injured Larry Csonka at fullback, Marsh White bolted through Pittsburgh for 100 yards as the New York Giants stunned the Steelers 17-0 to gain their third exhibition victory in 10 days. The New York Jets finally won their first game for new Coach Lou Holtz, beating Houston 27-24. Bob Griese threw touchdown passes on Miami's first three possessions as the Dolphins spoiled Tampa Bay's home debut, defeating the Buccaneers 28-21 before 71,718. Denver cruised to a 38-7 halftime lead and crushed Seattle 52-7, for the Seahawks' fourth straight defeat. New Orleans beat Baltimore 26-20 on Mike Strachan's three-yard touchdown run after 11:20 of overtime; and Buffalo routed Green Bay 37-0. Fran Tarkenton's 32-yard touchdown pass to rookie Sammy White with 24 seconds left to play led Minnesota past Cincinnati 23-17, while John Cappelletti's two touchdowns powered Los Angeles over Oakland 23-14. Rookie Danny White threw two touchdown passes to rookie Duke Fergerson as Dallas won its first exhibition, trouncing Detroit 36-16; Jan Stenerud's 36-yard field goal with 14 seconds to play enabled Kansas City to beat Washington 23-20. St. Louis handed Chicago its first loss after three victories, 20-14; New England defeated winless Atlanta 28-17; and Quarterback Jim Plunkett led San Francisco to a 17-16 victory over San Diego in Honolulu.

GOLF—RIK MASSENGALE finished birdie-birdie for a final-round 66 and an 18-under-par total of 266 to score a two-stroke victory over J. C. Snead and Al Geiberger in the $210,000 Sammy Davis Jr.-Greater Hartford Open.

Kathy Whitworth had a seven-under-par 212 to win the $55,000 Patty Berg Classic in St. Paul, two strokes ahead of Sandra Post.

Donna Horton of Jacksonville moved ahead with a 10-foot birdie putt on the 31st hole and beat Marianne Bretton of San Diego 2 and 1 to win the 76th U.S. Women's Amateur championship at Sacramento.

HARNESS RACING—KEYSTONE ORE ($5.00), driven by Stanley Dancer, clocked the fastest mile ever by a 3-year-old pacer at Yonkers Raceway to win the $200,000 Cane Pace in 1:57[1/5]. Favored Armbro Ranger placed sixth.

Long shot TROPICAL STORM ($86.20), with Ralph Baldwin in the sulky, won the $145,000 Empire State Trot in 1:57[3/5] at the Syracuse Mile.

HORSE RACING—HONEST PLEASURE ($6.20), Craig Perret up, led throughout and won the $108,400 Travers Stakes at Saratoga Springs, N.Y. in a track-record 2:00[1/5] for the 1¼ miles (page 18).

Hatchet Man ($17.80), Vince Bracciale Jr. in the irons, upset Intrepid Hero and Forego to win the $110,450 Amory L. Haskell Handicap at Monmouth Park. Carrying only 112 pounds, his lightest weight this year, Hatchet Man covered the 1¼ miles in 2:00[3/5]. Third-place finisher Forego carried 136 pounds in an attempt to join Kelso and Tom Fool (Hatchet Man's grandsire, who died two weeks ago at the age of 27) as the only American thoroughbreds to win under that weight at 10 furlongs.

Sharp Gary ($29.80), Sam Maple up, won the $100,000 Michigan Mile and One-Eighth at Livonia. ROYAL GLINT, the 3-5 favorite and thoroughbred racing's 19th million-dollar earner, fractured a sesamoid bone in his left foreleg during the race; he closes out his career with total earnings of $1,004,815.

Nicosia ($13.00), ridden by William Gavidia, equaled Arlington Park's track record of 2:00[3/5] for 1¼ miles in winning the $120,800 Sheridan Handicap.

MOTOR SPORTS—AL UNSER, driving a Parnelli-Cosworth, averaged 121.907 mph to win the 200-mile, $59,952 Tony Bettenhausen USAC championship race in Milwaukee.

David Pearson drove his Mercury at an average 140.078 mph over the 200 laps of the Michigan International Speedway two-mile oval to win the Champion 400 NASCAR race at Cambridge Junction.

SOCCER—NASL: The defending champion Tampa Bay Rowdies defeated New York 3-1 and eliminated the Cosmos from the playoffs. In other quarterfinal games, Toronto beat Chicago 3-2 in overtime, San Jose defeated Dallas 2-0, and Minnesota stopped Seattle 3-0 (page 22).

ASL: New York beat Rhode Island 2-1 for the Eastern Division championship, and Los Angeles defeated Tacoma by the same score for the Western Division title. The Apollos and the Skyhawks, a new team this season, will meet in Los Angeles for the ASL championship, which New York has won two of the last three years.

TENNIS—JIMMY CONNORS defeated Poland's Wojtek Fibak 6-2, 6-4 to win the men's singles and $21,875 at the U.S. Clay Court Championships in Indianapolis.

Mima Jausovec of Yugoslavia defeated Lesley Hunt of Australia 6-2, 6-0 to win the women's singles at the Canadian Open in Toronto.

WTT: The New York Sets beat the Golden Gaters 31-23 in Oakland to take a 1-0 lead in their best-of-five championship series. The Sets gained the finals by rallying to defeat Pittsburgh 29-21 and 28-26 after the Triangles had won the opening match 26-25. Billie Jean King paced New York with a pair of 6-4 victories over Evonne Goolagong. The Gaters qualified for the finals by upsetting Western Division champion Phoenix 32-16 and 24-18.

TRACK & FIELD—MIKE BOIT of Kenya and Eastern New Mexico University, who was unable to compete in the Olympics because of the African boycott, beat Belgian silver medalist Ivo Van Damme and American bronze medalist Rick Wohlhuter in Zurich on Wednesday when he ran the 800 meters in 1:43.9. On Friday in West Berlin, Boit beat Wohlhuter by almost four full seconds with a 1:43.6, the second fastest time in history and only one-tenth of a second off the world record set at Montreal by Alberto Juantorena of Cuba.

The SOVIET UNION'S national team—TATYANA PROVIDOKHINA, VALENTINA GERASIMOVA, SVETLANA STYRKINA and TATYANA KAZANKINA—shaved 1.9 seconds off the women's world record when they ran the 4 x 800-meter relay in 7:52.3, in Podolsk, U.S.S.R. The previous record of 7:54.2 was set by the East German team earlier this month.

MILEPOSTS—HIRED: JERRY WEST, 38, third alltime leading scorer in NBA history, as coach of the Los Angeles Lakers. West, who retired as a player in 1974 after 14 seasons with the Lakers, replaces Bill Sharman, who becomes assistant general manager.

REPATRIATED: SERGEI NEMTSANOV, 17-year-old Soviet diver who defected to Canada during the Olympic Games. Nemtsanov said he was willing to go back to the Soviet Union "without conditions."

SUED: THE STATE OF DELAWARE, by the National Football League, which is seeking a temporary order restraining the state from starting a lottery for betting on NFL games.