BASKETBALL—As expected, CINCINNATI took the Eastern Division semifinal playoffs from Philadelphia, but the series had to go the full five games. Each team won on its home court, starting with the Royals' easy 127-102 victory in the first game, in which Jerry Lucas scored 25 points and Oscar Robertson 31. Two nights later the 76ers came from behind on Hal Greer's 15 final-period points (29 overall) to defeat the Royals 122-114. Cincinnati won the third game 101-89, and Philadelphia evened the series with a 129-120 victory (six 76ers scored more than 10 points apiece). The final game was tied 59-59 at half time, but Robertson, who had been held to only six points, broke loose and scored 26 in the last half to lead the Royals to a 130-124 victory. In the Western Division semifinals between ST. LOUIS and LOS ANGELES, the Hawks easily took the first two games, 115-104 and 106-90, and were within a gasp of winning the playoff in three straight. They had come from behind to tie the third game at 105-105 and had the ball with 37 seconds to go. But the Lakers blocked a shot, gained possession, and in the final second Elgin Baylor threw in a 20-foot field goal to give LA a 107-105 victory. Jerry West was the game's high scorer with 39 points, and three nights later he scored 39 again as the Lakers won 97-88 to tie the series at two-all.

BOATING—After three days and seven races on New Orleans' Lake Pontchartrain, DAN HURLEY of Short Hills, N.J., a Villanova senior, won the North American Finn class championships.

BOWLING—BILL HARDWICK, 23, of San Mateo, Calif., the PBA's leading money winner in 1963, defeated Ed Bourdase 213-196 in the final match to win the $31,400 Pontiac, Mich. Open, his sixth tournament victory in the last 12 months.

BOXING—Former Middleweight Champion BOBO OLSON, 35, outboxed Wayne Thornton, 24, to gain a 10-round split decision in a San Francisco light-heavyweight fight.

GOLF—OKLAHOMA STATE upset host team Houston 1,200 strokes to 1,204 for the medal-play title at the All-America Intercollegiate Tournament on the Pine Forest Country Club course. It was the first 72-hole defeat in Houston's golfing history, but that was not all: the Oklahoma State Cowboys also edged the defending champion Cougars for the overall team title (112 to 109 points) and the team match championship (4½ to 1½). Houston, however, took the four-ball and two-ball team matches, and the individual medal play title went to the Cougars' Wright Garrett.

GYMNASTICS—SOUTHERN ILLINOIS of Carbondale, Ill., the NCAA tournament runner-up the past three years, finally won the championship in Los Angeles. USC's Ron Barak took the individual all-round title as his school edged Michigan, the 1963 champion, for second place in the team standings.

HARNESS RACING—Six-year-old ADIOS DON ($9.50), trained and driven by Stanley Dancer, nosed out Royal Domain at the wire to win the $25,000 Adios Butler Cup pace at Roosevelt Raceway in Westbury, N.Y. Favorite Henry T. Adios, the world's leading money-winning pacer, finished sixth in the seven-horse field.

HOCKEY—MONTREAL and TORONTO split two games, and CHICAGO and DETROIT exchanged wins as the best-of-seven Stanley Cup semifinals got under way. The Canadiens' Goalie Charlie Hodge needed only 25 saves to shut out the Maple Leafs 2-0 in their first game, as a record 31 penalties were handed out (two more than the previous high set in a Detroit-Toronto semifinal in 1952). Two nights later the Maple Leafs beat the Canadiens 2-1. The Black Hawks downed the Red Wings 4-1 in their first game, but the Wings, led by Norm Ullman's three goals, tied the series with a 5-4 victory.

HORSE RACING—Herbert Allen's DETERMINED MAN ($46.10), ridden by Johnny Ruane, won the $28,750 Bay Shore Stakes for 3-year-olds in a driving four-horse finish at Aqueduct. Lord Date was second by a nose, followed by Alphabet and the favorite, Black Mountain.

In another test for 3-year-olds, the $18,075 Fountain of Youth Stakes at Gulfstream Park, Cecil Carmine's DANDY K ($25), Mickey Solomone in the saddle, caught favored Roman Brother in the stretch and went on to a one-length victory.

E. P. Taylor's NORTHERN DANCER ($2.80), Manuel Ycaza aboard, warmed up for the Florida Derby at Gulfstream Park by streaking to a four-length victory over The Scoundrel in a seven-furlong allowance race in the track-record-equaling time of 1:22 2/5.

ROWING—The Thames River was calm but the half a million partisan spectators scattered along its banks were not, as the CAMBRIDGE crew pulled ahead of favored Oxford right after the start of the race and steadily increased its lead over the 4-mile course for a 6½-length upset victory at Henley-on-Thames, England.

SKIING—BILLY KIDD of Stowe, Vt. and TAMMY DIX of Spokane, Wash., winners of the first day's giant slalom races, went on to take the men's and women's combined titles in the North American Alpine championships at Crested Butte, Colo. The downhill events were canceled because of a snowstorm, and in the slalom Kidd was runner-up to BILL MAROLT of Aspen, Colo., and Miss Dix placed third behind Italy's PIA RIVA and Linda Meyers of Mammoth Lakes, Calif.

SWIMMING—-Led by sophomores Roy Saari and Bill Craig, who won five races between them, SOUTHERN CALIFORNIA took first place in eight events to successfully defend its team title at the National Collegiate championships in New Haven with 96 points, closely followed by Indiana (91), the favorite, and Yale (87). Three American records were broken as USC's Bob Bennett and Rich McGeagh swam the 100-yard backstroke in 53.1; Fred Schmidt of Indiana won the 200-yard butterfly in 1:53.5; and Minnesota's Wally Richardson kept his 100-yard butterfly title with a 50.2 clocking.

TENNIS—Defending Champion ROY EMERSON overpowered Manuel Santana of Spain 7-5, 6-4, 6-2 for his fourth consecutive singles title at the Good Neighbor tournament in Miami Beach. He then teamed with fellow Australian Ken Fletcher to take the doubles championship 6-3, 6-8, 6-4 from Boro Jananovic and Nicola Pilic of Yugoslavia.

Charles Pasarell Jr. of San Juan, P.R. defeated both Chuck McKinley (7-5, 6-3 in the quarter-finals) and Dennis Ralston (6-3, 3-6, 6-4 in the finals) to take the singles title in the Thunderbird tournament in Phoenix for the second year in a row.

TRACK & FIELD—Toronto's BILL CROTHERS overtook world-record-holder Wendell Mottley in the final strides to win the 600-yard run in 1:10 flat at an indoor meet in Wembley, England.

WRESTLING—OKLAHOMA STATE set a team scoring record of 87 points to win the National Collegiate Championships in Ithaca, N.Y. (seepage 28).

MILEPOSTS—NAMED: Former U.S. and Wimbledon Tennis Champion VIC SEIXAS Jr., 40, who played on seven Davis Cup teams (1951-1957), to succeed Bob Kelleher as nonplaying captain of the U.S. team. "This is something I've always wanted to do," said the Philadelphia securities salesman.

FIRED: Marquette University Basketball Coach EDDIE HICKEY, 61, after a poor 5-21 season, which included a 15-game losing streak. His teams compiled a 92-70 overall record in his six years as head coach.

RETIRED: DICK HARP, 44, head basketball coach at the University of Kansas since 1956 (116-82 eight-year record) and only the fourth coach at the school in 65 years of the sport. His assistant, Ted Owens, 34, was named his successor.

DIED: ANDREW THOMAS (Andy) FRAIN, 60, founder of one of the world's largest crowd-ushering services, of a heart attack in Rochester, Minn.