Darryl Strawberry singled home the tie-breaking run in the 10th inning as the New York Mets scored three times to beat the Expos, 4-1, in a game delayed for more then two hours by rain last night in Montreal.

The victory improved the Mets' lead to 11 1/2 games over the Expos in the NL East.

Wally Backman started the Mets' rally with a one-out single off Jeff Reardon (6-4) and stole second to move into scoring position. One out later, Len Dykstra singled home two insurance runs for the Mets.

Doug Sisk (1-1) got the victory.

The Mets carried a 1-0 lead into the bottom of the eighth, but the Expos tied it on a one-out walk. Cubs 7, Phillies 5: Jamie Moyer, making his first major league start, worked out of enough jams to gain his first victory and also had a key at-bat without taking a swing in the Cubs' victory over Philadelphia in Chicago.

Moyer, recalled Saturday from Class AAA Iowa, where he was 3-2, pitched the first 6 1/3 innings before getting relief help from Lee Smith, who earned his ninth save.

" Moyer worked out of a lot of jams," said Cubs Manager Gene Michael, 2-1 since taking over on the weekend. "He worked from behind a lot, but battled."

Moyer also drew a key walk in a four-run fourth inning off Philadelphia starter Steve Carlton (4-8) when he walked on a 3-2 pitch. Davey Lopes then drew a bases-loaded walk to break a 1-1 tie and Shawon Dunston followed with a two-run single.

Leon Durham hit a two-run homer in the fifth to give the Cubs a 6-2 lead. Braves 4, Reds 3: In Atlanta, Ken Oberkfell singled past drawn-in second baseman Ron Oester to score Dale Murphy from third base with one out in the bottom of the 10th inning.

With one out, Cincinnati reliever John Franco (0-4) walked Murphy. Bob Horner singled, sending Murphy to third. Horner took second on center fielder Eddie Milner's throw to third and Oberkfell bounced a 2-2 pitch just past Oester. Cardinals 4, Pirates 1: Jack Clark hit a home run -- his seventh of the season -- and Danny Cox pitched a four-hitter as St. Louis won a rain-shortened game in Pittsburgh.

The game was called after two rain delays totaling 39 minutes with the Cardinals batting with one out in the top of the sixth. The loss was Pittsburgh's fifth in a row. Padres 4, Giants 0: Andy Hawkins pitched a seven-hitter and Garry Templeton highlighted a three-run seventh inning with a two-run single as the Padres defeated San Francisco in San Diego.

The game was scoreless until the sixth when Marvell Wynne hit a bases-empty homer off Bill Laskey. Laskey (1-1) had replaced Scott Garrelts, who left the game after five innings after hyperventilating.

Steve Garvey singled for his 2,500th career hit.