The visiting Chicago Cubs scored six runs in the first inning Wednesday night to complete a three-game sweep of the New York Mets with a 6-3 win.

The sweep marks the first time the Cubs (61-82) have swept a series of at least three games since they beat the Philadelphia Phillies in a three-game set from July 22-24.

The Mets (89-55) were swept in a three-game series for the first time this season. The three-game losing streak matches a season high for New York, which remained a half-game ahead of the Atlanta Braves in the National League East by virtue of the Braves’ 4-1 loss to the San Francisco Giants earlier Wednesday.

Mets starter David Peterson (7-5) got into immediate trouble by walking the Cubs’ first three batters — Christopher Morel, Seiya Suzuki and Franmil Reyes. Peterson struck out Patrick Wisdom but then surrendered back-to-back two-run doubles to Yan Gomes and P.J. Higgins.

Trevor Williams relieved Peterson and gave up run-scoring hits to the first two batters he faced — Michael Hermosillo, who greeted him with a double, and Nelson Velazquez, who laced a single.

Higgins and Velazquez each finished with two hits.

The early cushion was more than enough for Cubs starter Drew Smyly (7-8), who gave up two runs (one earned) on four hits and one walk while striking out five over five innings.

Mark Leiter Jr., the Cubs’ fifth pitcher, earned his second save with a hitless ninth. He plunked leadoff batter Jeff McNeil before Hermosillo robbed Eduardo Escobar of a potential homer at the right-center-field wall.

Tomas Nido homered in the third for the Mets, who scored their second run when Escobar scored on an error by Wisdom at third base in the fifth. Pete Alonso homered in the eighth.

Peterson’s ERA rose from 3.47 to 3.91. The outing was tied for the shortest start of his three-year career.

Williams allowed one run on four hits and one walk with eight strikeouts in 4 1/3 innings. He struck out the next six batters he faced following Velazquez’s hit.

–Field Level Media