Tim Wallach hit a home run with two out and one on in the Expos' 10th inning at Montreal yesterday and the Chicago Cubs crashed to their 13th successive defeat, 5-3. That tied the club record set in May 1944, the year before the Cubs won their last pennant.

Manager Lee Elia, whose Cubs rallied to tie the game on Ryne Sandberg's single off Montreal ace Steve Rogers' glove in the seventh inning, said, "We're snakebit. We hit the heck out of the ball today, but it always seemed to be right at someone. I'm proud of the way they played today. They worked their tails off. You can't do much more."

If the Cubs maintained patience, Wallach reckoned his own supply had worn a little too thin.

"I've been waiting all year to get a game-winning hit," Wallach said. It was his eighth homer of the year and came off Willie Hernandez (2-4).

"Chicago is a hungry team but they're the type of team that you want to sweep," Wallach said, as the Expos swept a three-game series and drew within two games of the NL East-leading St. Louis Cardinals. "We're going to St. Louis now and looking for at least two wins."

A crowd of 35,428, despite a one-day subway strike, saw Tim Raines single in the first and third innings, steal second base each time--his 100th and 101st career thefts--and score twice. In between, Wallach doubled in the second inning and scored on a wild pitch by Tom Filer, an emergency starter after Dickie Noles slipped and bruised a knee before the game.