A Roundup Of The Week April 14-20

PRO BASKETBALL—Los Angeles won its Western Conference semifinal series with Phoenix 4-1 as Kareem Abdul-Jabbar celebrated his 33rd birthday with 35 points and 16 rebounds in the Lakers' 126-101 clinching victory. With Larry Bird getting 34 points, Boston completed its sweep of Houston in their Eastern Conference semifinal series with a 138-121 triumph. Philadelphia , trailing 53-43 at the half in its fifth game with Atlanta , rallied behind 21 second-half points by Darryl Dawkins to win its series 4-1 with a 105-100 triumph over Atlanta . In the Seattle - Milwaukee Western semis, the Sonics won the seventh game 98-94 and the series 4-1, while in the Eastern finals the 76ers and Celtics split a pair of games at Boston Garden (page 18).

BOWLING—WAYNE WEBB defeated Gary Dickinson 219-194 to win the $150,000 Tournament of Champions in Akron .

BOXING—AYUB KALULU retained his WBA super welterweight title with an 11th-round TKO of Emiliano Villa in Copenhagen .

DIVING—GREG LOUGANIS of El Cajon , Calif. won the one- and three-meter springboard events, and BRUCE KIMBALL took the 10-meter platform event at the AAU indoor championships in Milwaukee . KAREN GORHAM of Fayetteville , Ark. was the women's one-meter champion, while defending titlist CARRIE FINNERAN of Columbus, Ohio won the three-meter, and CHRISTINE LOOCK of Dallas finished first in the platform.

GOLF—TOM WATSON shot a 12-under-par 276 to win the $300,000 Tournament of Champions in Carlsbad, Calif. by three strokes over Jim Colbert .

Donna White shot a nine-under-par 283 to win her first LPGA title, a $100,000 tournament in Orlando, Fla. She beat Jane Blalock by one shot.

GYMNASTICS—JULIANNE McNAMARA, 14, of Eugene Ore. won the all-around title at the USGF women's championships in Salt Lake City .

HOCKEY—After Boston earned its ticket to the quarterfinals with a 6-2 triumph over Pittsburgh , its luck went cold. The Bruins started off with two overtime losses to the Islanders—2-1 on Clark Gillies ' 20-foot goal at 1:02 of the first OT and 5-4 on Center Bob Bourne 's score from 50 feet out at 1:24 of sudden death. That second game was marred by brawling, which resulted in Referee Dave Newell doling out 254 penalty minutes and ejecting eight players. There was more of the same in Game 3. Among four slugging exhibitions, Islander Bryan Trottier had two goals and two assists to lead the Isles to a 5-3 victory. The Rangers lost thrice to Philadelphia , 2-1, 4-1 and 3-0, before Ron Duguay's first playoff hat trick helped them to a 4-2 triumph in Game 4. Meanwhile Buffalo swept Chicago 5-0, 6-4, 2-1 and 3-2 as Gil Perreault flipped in the series-winning goal with 3:06 remaining in the fourth game. Youthful Minnesota gave Montreal a surprise, snapping the Canadien's 24-game unbeaten streak and taking a 2-0 lead in the series as Goalie Gilles Meloche had his first NHL shutout (3-0) and had 40 saves in the North Stars' 4-1 victory. When the action shifted to Minnesota , Montreal evened the series with 5-0 and 5-1 triumphs.

HORSE RACING—PLUGGED NICKLE ($3), ridden by Buck Thornburg, beat Colonel Moran by 1� lengths to win the $145,500 Wood Memorial at Aqueduct. The 3-year-old had a 1:50[4/5] clocking for the 1? miles.

Rich Gritch ($186.80), Luke Myles up, outran Skip A Square by a half length to win the $332,000 Golden State Derby at Bay Meadows . The 3-year-old filly ran the 440 yards in 21.83 seconds.