PRO HOCKEY—Minnesota awakened in the first round of the playoffs to sweep St. Louis 3-2, 4-3 and 2-0 as goalie Gilles Melodic turned away 39, 41 and 27 shots in the three games. The North Stars' next opponent is Chicago, which outscored Detroit 23-8 (9-5, 6-1 and 8-2) to sweep their series. Philadelphia swept the Rangers by scores of 5-4 in overtime, 3-1 and 6-5 in a series marred by a bench-clearing brawl in the second game that earned each team a $5,000 fine. The Flyers will next face either Washington or the Islanders, who were tied 2-2 at week's end in a series costly for the Islanders and their coach, Al Arbour. The Capitals won the opener 4-3 in overtime, then took Game 2 on a goal by Mike Gartner at 1:23 in the second OT. Arbour felt that his goalie, Kelly Hrudey, had been interfered with on the play. Arbour shoved one official and he and his team made disparaging remarks about the officiating, which brought the club and Arbour fines of $7,500 apiece. The Islanders stayed alive with 2-1 and 6-4 victories at home, the latter featuring a four-goal rally in the third period and a Billy Smith save on Bobby Carpenter's penalty shot with 30 seconds to play and New York ahead 5-4. After beating Los Angeles 3-2 in overtime and 4-2, Edmonton got a goal from Glenn Anderson 46 seconds into OT to eliminate the Kings with a 4-3 victory. Winnipeg won its series with Calgary, while Boston, which hadn't won a playoff series (0-15) from Montreal since 1943, drew even with the Canadiens at two games apiece with a 7-6 victory on Sunday night, rallying from a three-point deficit. Buffalo and Quebec were also tied at 2-2, each team winning twice on its home ice.
HORSE RACING—RASCAL LASS ($11), ridden by Ray Sibille, beat Denver Express by 1� lengths to win the $282,700 Fantasy Stakes for 3-year-old fillies at Oaklawn Park. The winner's time was 1:43[1/5] for the 1[1/16] miles.
Greinton ($3.60), Laffit Pincay up, edged Precisionist by a neck to win the $257,300 San Bernardino Handicap at Santa Anita. The 4-year-old colt ran the 1? miles in 1:47 flat.
INDOOR SOCCER—On the last day of the MISL regular season, Eastern Division-winner Baltimore lost to Cleveland 4-3. San Diego, the No. 1 team in the West, beat Las Vegas 10-7 on four goals by Branko Segota and two by Steve Zungul, who won his third MISL triple crown, leading the league in goals (68), assists (68) and points (136).
MARATHON—GEOFF SMITH won the 89th Boston Marathon with a time of 2:14:05. LISA LARSEN WEIDENBACH was first among the women, finishing in 2:34:06 (page 77).
Salah Ahmed of Djibouti ran a 2:08:09 to win the World Cup Marathon in Hiroshima, Japan, beating Takeyuki Nakayama of Japan by six seconds and missing Steve Jones's world record by only four. In the women's race, KATRIN D�RRE of East Germany clocked a 2:33:30 to defeat Zoia Ivanova of the Soviet Union by 47 seconds.
MOTOR SPORTS—MARK) ANDRETTI, in a Lola, won the Long Beach ( Calif.) Grand Prix, finishing 60.1 seconds ahead of Emerson Fittipaldi in a March (page 70).
Bill Elliott drove his lord to victory in the $338,350 TranSouth 500, averaging 126.295 in a light rain on the 1.366-mile Darlington ( S.C.) International Raceway oval. He finished 1.86 seconds ahead of Darrell Waltrip, who drove a Chevy.
TENNIS—IVAN LENDL defeated Tim Mayotte 7-6, 6-4, 6-1 to win a $500,000 WCT tournament in Dallas.
Chris Evert Lloyd defeated 14-year-old Gabriela Sabatini of Argentina 6-4, 6-0 in the finals of a $200,000 tournament in Hilton Head Island, S.C.