A Roundup of the Week May 11-17

PRO BASKETBALL—The Los Angeles Lakers advanced to the Western Conference final for the sixth straight year, with a 118-106 Game 5 victory over Golden State. Houston pulled to within one game of Seattle in their best-of-seven semifinal series with a 112-107 win; however, Akeem Olajuwon's 49 points and 25 rebounds couldn't keep the Rockets from losing to the Sonics 128-125 in the double-overtime, series-clinching Game 6. Seattle, which finished 26 games behind the Lakers in the Pacific Division during the regular season, fell to Los Angeles in the Western Conference final opening game 92-87. In the Eastern Conference, Detroit wrapped up its semifinal series with Atlanta in five games. Down 12 points in the fourth quarter of Game 5, the Pistons rallied to outscore the Hawks 14-4 in the last four minutes and won 104-96. Milwaukee, behind three games to one in its semifinal series with Boston, beat the Celtics at the Garden for the first time in more than two years, 129-124, to end Boston's string of home wins at 31 and their playoff win streak at 14. Two nights later the Celtics played without center Robert Parish, who had sprained his left ankle in the previous game. The Bucks evened things up at three games apiece with a 121-111 victory, but the series ended with a 119-113 Boston win. The Celtics will meet Detroit in the conference final (page 22).

BOXING—EVANDER HOLYFIELD scored a third-round TKO over defending titleholder Rickey Parkey to win the IBF cruiserweight championship, in Las Vegas.

Santos Laciar of Argentina won the WBC super flyweight title from defending champion Gilberto Roman of Mexico when the referee stopped the fight in the 11th round, in Reims, France.

GOLF—KEITH CLEARWATER'S two consecutive rounds of 64 gave him a 14-under-par 266 to beat Davis Love III by three strokes and win $108,000 and a PGA event in Fort Worth.

Ayako Okamoto shot a four-under-par 215 to win $33,750 and an LPGA event in Middletown, N.J. Runners-up Colleen Walker and Jane Geddes finished two strokes back.

HOCKEY—Edmonton polished off Detroit four games to one to win the Campbell Conference championship series and advanced to the Stanley Cup finals. Mike Krushelnyski scored the Game 4-winner at 18:46 of the second period as the Oilers edged the Red Wings 3-2 at Joe Louis Arena. Mark Messier then put in two goals, including his 10th of the playoffs, to help the Oilers rally from a two-goal deficit and clinch the series with a 6-3 Game 5 win. Edmonton's Wayne Gretzky was held to two assists in the five contests. Montreal stayed alive in its Wales Conference final series by defeating Philadelphia 5-2 in Game 5, but the Flyers rallied in Game 6 to eliminate the defending champion Canadiens in a fight-marred 4-3 victory. Montreal's Claude Lemieux shot a puck into an empty Flyer net at the conclusion of the warmup period and set off a 15-minute pregame brawl that involved 36 players from the Philadelphia and Montreal benches. The fracas cost the two teams $24,500 in fines assessed by the NHL (page 17). In Game 1 of the Stanley Cup finals, Gretzky opened the scoring for Edmonton with his 68th career playoff goal, which tied him with Gordie Howe for fourth on the alllime list, to lead the Oilers to a 4-2 victory over Philadelphia (page 42).

HORSE RACING—ALYSHEBA ($6), Chris McCarron up, defeated Bet Twice by half a length to win the Preakness Stakes at Pimlico. The 3-year-old Kentucky Derby-winning colt ran the 1[3/16] miles in 1:55[4/5] to win $421,000 (page 30).

INDOOR SOCCER—Steve Zungul, the leading scorer in the playoffs, with 17 points, tallied three goals in just over six minutes to lead Tacoma to a 4-2 win over Wichita in the deciding game of its best-of-five Western Division semifinals. San Diego tied its Western series with Kansas City, defeating the Comets 5-2 in Game 4. Cleveland beat Minnesota 6-5 to take a two-games-to-one lead in their Eastern semifinal. A hat trick by the Force's Alan Willey sent the game into overtime, and Michael King kicked in the game-winner. But the Strikers drew even at week's end with a 5-3 victory. Andy Chapman scored his second goal of the game, in OT. to give Baltimore a 3-2 win over Dallas and a 2-1 lead in the other Eastern series before the Sidekicks tied the series with a 4-3 OT victory.

LACROSSE—HOBART defeated Ohio Wesleyan 9-5 in the Division III final, in Geneva, N.Y., to win its eighth straight title and set an NCAA record for consecutive national team championships in a team sport. The previous mark of seven was held by UCLA's basketball teams from 1967 to '73.

MOTOR SPORTS—ALAIN PROST of France drove his McLaren-Porsche to victory at the Belgian Grand Prix, defeating Sweden's Stefan Johansson, also in a McLaren-Porsche, by 24.76 seconds and tying Jackie Stewart's record of 27 Formula One victories. Prost, who averaged 127.522 mph, covered the 185.469-mile course in 1:27:31.21.

TENNIS—STEFFI GRAF won her sixth straight tournament and $30,000 by defeating Claudia Kohde-Kilsch 6-2, 6-3 at the German Open, in Berlin.

Mats Wilander beat Martin Jaite 6-3, 6-4, 6-4 to win the Italian Open and $64,000, in Rome.

WATER POLO—YUGOSLAVIA defeated the Soviet Union on goal-scoring differential to win the World Cup, in Salonika, Greece, Both teams were 5-0-2 in their matches, but Yugoslavia scored 75 goals and allowed 54 while the U.S.S.R. tallied 70 and allowed 53.

MILEPOSTS—ACQUITTED: By a circuit court jury in Baltimore, on May 6, heavyweight boxer REGGIE GROSS, 25, of a first-degree murder charge stemming from the Sept. 12 death of Andre Jerome Coxson, 32. Gross has an 18-4 pro record.

ARRESTED: On suspicion of driving while intoxicated, for the second time in four weeks, California Angels pitcher JOHN CANDELARIA, 33, in Santa Ana, Calif. (page 64).

NAMED: As NBA Rookie of the Year, 6'8", 225-pound CHUCK PERSON of the Indiana Pacers, who averaged 36 minutes, 18.8 points and 8.3 rebounds per game this season, leading the team in scoring and three-point field goals (49). The Pacers went to the playoffs for the first time since 1981.

SENTENCED AND FINED: By a federal judge in New York, MICHAEL SERGIO, 37, the parachutist who landed at Shea Stadium during the 1986 World Series, to six months in jail and $100 for each day he fails to cooperate with Federal Aviation Administration officials in naming the pilot involved in the stunt.

DIED: LUKE SEWELL, 86, a catcher for four major league baseball teams for 20 years between 1921 and '42, and manager of the St. Louis Browns from 1941 to '46 and the Cincinnati Reds from 1949 to '52; of cancer; in Akron.

ROBERT C. JAMES, 66, Atlantic Coast Conference commissioner from 1971 to '87; of cancer; in Durham, N.C.