A Roundup Of The Week April 6-12

PRO BASKETBALL—With four straight victories over Chicago, by scores of 121-109, 106-97, 113-107 and 109-103, Boston swept its best-of-seven NBA quarterfinal series. Philadelphia and Milwaukee played give and take, the Sixers winning 125-122 behind 38 points by Julius Erving, the Bucks triumphing 109-99, Philly succeeding 108-103 and Milwaukee coming out on top 109-98. After a 107-98 Houston victory at San Antonio, the Spurs got 34 points from Mark Olberding for a 125-113 win. In the next game Houston received 41 points and 15 rebounds from Moses Malone for a 112-99 victory, and then lost 114-113 to even the series 2-2. Upstart Kansas City won three of four in its playoff with Phoenix (page 88).

BOWLING—EARL ANTHONY beat Gil Sliker 230-224 to win the $100,000 Long Island Open in Garden City, N.Y. for the third year in a row.

BOXING—LARRY HOLMES successfully defended his WBC heavyweight title with a unanimous decision over Trevor Berbick in Las Vegas.

Sean O'Grady won the WBA lightweight championship by a unanimous decision over Hilmer Kenty in Atlantic City, N.J.

Sammy Serrano regained the WBA junior lightweight title that he had lost in August, with a "unanimous 15-round decision over Yasutsune Uehara in Wakayama, Japan.

GOLF—TOM WATSON shot an eight-under-par 280 to win the 45th Masters by two strokes over Jack Nicklaus and Johnny Miller (page 34).

Donna Caponi won a $125,000 LPGA tournament in Raleigh, N.C. with an eight-under-par 208, one stroke better than Cathy Sherk.

GYMNASTICS—Utah won the AIAW championship in Salt Lake City, defeating UCLA 145.65-144.1. SHARON SHAPIRO and DIANE DOVAS of UCLA won the individual titles in the vault and uneven bars, respectively, while HEIDI ANDERSON of Penn State placed first in the floor exercise and LAURIE CARTER of Oregon State was No. 1 in the balance beam.

HOCKEY—While Edmonton was shocking Montreal in their best-of-five playoff series (page 40), Minnesota and Calgary were pulling upsets of their own. In 14 seasons in the NHL, the North Stars had never won a game in Boston Garden. Last week they did it twice, beating the Bruins 5-4 on an overtime goal by Steve Payne and 9-6 with Payne and Al MacAdam scoring twice each. The Stars clinched the series in Bloomington with a 6-3 triumph. After leading off with 4-3 and 6-2 victories, the Flames extinguished Chicago 5-4 on Willi Plett's 40-foot slap shot in the second OT. The Rangers won 3-1 in their playoff opener in Los Angeles, but lost their next outing there 5-4. That game was marred by a brawl that helped set a variety of playoff records for penalties, including the one for the most minutes by two teams in one game (267). The Rangers then triumphed 10-3 and 6-3 to eliminate the Kings. More predictably, the Islanders swept Toronto 9-2, 5-1 and 6-1 with Mike Bossy and Bryan Trottier each getting 10 points in the series, and Buffalo eliminated Vancouver for the second year in a row, by scores of 3-2 in overtime, 5-2 and 5-3. St. Louis split its four encounters with Pittsburgh. After winning 4-2 and losing 6-4, the Blues went ahead in the series with a 5-4 win, in which Bernie Federko got the game winner with 4:06 to play, but the Penguins then came back with a 6-3 victory. Philadelphia started off with two triumphs, 6-4 and 8-5, over Quebec before losing two, 2-0 and 4-3 in overtime, to end the week tied 2-2 with the Nordiques.

HORSE RACING—SPLENDID SPRUCE ($32), ridden by Darrel McHargue, beat Johnlee n' Harold by 1� lengths to win the $270,600 Santa Anita Derby. The 3-year-old was timed in 1:49 for the 1? miles.