PRO BASKETBALL—With a 105-102 home-court victory, Philadelphia tied its best-of-seven NBA championship series with Los Angeles at two victories apiece (page 20).
BOXING—MARVIS FRAZIER of Philadelphia won a three-round decision from Chris McDonald of Tiverton, R.I. in the heavyweight title fight at the National AAU Championships in Las Vegas. The other winners: JEFF LAMPKIN of Youngstown, Ohio, 178 pounds; MARTIN PIERCE of Hint, Mich., 165; DON BOWERS of Jackson, Tenn., 156; GENE HATCHER of Fort Worth, 147; JOHNNY BUMPHERS of Nashville, 139; MELVIN PAUL of New Orleans, 132; CLIFFORD GRAY of Boynton Beach, Fla., 125; JACKIE BEARD of Jackson, Tenn., 119; RICHARD SANDOVAL of Pomona, Calif., 112; and ROBERT SHANNON of Edmonds, Wash., 106.
Matthew Saad Muhammad retained his WBC light-heavyweight crown by stopping Louis Pergaud in the fifth round in Halifax, Nova Scotia.
GOLF—TOM WATSON shot a six-under-par 274 to win the $300,000 Byron Nelson Classic in Dallas by one stroke over Bill Rogers. The win was his fifth on the 1980 tour; it was also the third tournament in a row in which Watson led or was tied for the lead after every round.
Pam Higgins shot a 54-hole total of 208, 11 under par, to win the $100,000 Atlanta LPGA tournament by three strokes over Amy Alcott and Donna Caponi Young.
HARNESS RACING—DIRECT SCOOTER ($3), Warren Cameron in the sulky, defeated Melvin's Strike by 3� lengths to win the $100,000 National Pacing Derby at Roosevelt Raceway. The 4-year-old was timed at 1:57[1/5] for the mile.
HOCKEY—After 61 postseason games, the field for the Stanley Cup was narrowed to Philadelphia and the Islanders. The Flyers, up two games to one at the week's start, defeated Minnesota 3-2 as Left Wing Bill Barber scored twice and Goalie Phil Myre had 30 saves. That victory was Myre's third in a row since he had supplanted Pete Peeters in the second game of the series. Philly then won its fourth straight game, the series clincher, 7-3 with Barber getting two more goals to bring his total in the five games with the North Stars to nine. That tied the NHL single-series record set by Flyer Right Wing Reggie Leach in 1976. The Islanders won their semifinal with Buffalo four games to two, but not without a scare. Down 3-0 in the series, the Sabres, led by Center Gil Perreault's hat trick, scored as many goals (six) in the final two periods of Game 4 as they had in the first three games combined to triumph 7-4. After winning once again (2-0) on Goalie Bob Sauve's shutout, Buffalo went ahead 2-0 in the first period of Game 6 before the Islanders rallied to a 5-2 victory.
HORSE RACING—RAY'S WORD ($18), ridden by Richard DePass, defeated Mighty Return by a nose to win the $154,950 Illinois Derby at Sportsman's Park. The three-year-old colt covered the 1? miles in 1:52.
MOTOR SPORTS—JOHNNY RUTHERFORD, driving his Chaparral at an average of 192.256 mph through four qualifying laps at the 2.5-mile Indianapolis Motor Speedway, won the pole position for the May 25 Indianapolis 500 (page 26).
Richard Petty, averaging 89.471 mph in a Chevrolet, won the Music City 420 at the .596-mile Nashville International Raceway. He finished one length ahead of Benny Parsons, who also drove a Chevy.