Rick Sutcliffe pitched a four-hitter and hit a two-run double to contribute to a 15-hit offense as the Chicago Cubs defeated the New York Mets, 6-0, tonight.

With his 12th straight victory and third shutout of the season, Sutcliffe helped the Cubs regain a seven-game lead over the Mets in the National League East.

"All of this will mean nothing if I don't get a World Series ring," said the 6-foot-7, 215-pound Sutcliffe. "I have a tough time getting excited about anything right now.

"Sure, we have a seven-game lead, but there is still a ways to go. There is the playoffs and then the World Series and I won't be happy until we win that."

Sutcliffe (14-1) struck out 12 and didn't allow a walk in his fifth complete game this year. He retired the first 13 batters before George Foster singled to center. It was the fifth time this year Sutcliffe has struck out 10 or more batters.

"When you don't walk anybody and you get the kind of defense I got tonight, you can't help but win," he said. "I challenged and tried to stay ahead of every batter. It was simple as that and it worked."

The Cubs' Gary Matthews had three hits, including his 11th homer of the season. He also drove in two runs.

In the second, Keith Moreland doubled to right off Walt Terrell (10-11) and scored on Ron Cey's double to give the Cubs a 1-0 lead.

Matthews homered on the first pitch of the sixth to give the Cubs a 2-0 lead. He drove another run with a single to right in the seventh inning, when the Cubs scored twice off reliever Doug Sisk.

Leon Durham also drove in a run with a double.

In the eighth, with the bases loaded, Sutcliffe hit a ground-rule double off Wes Gardner.