CHICAGO — These are the days the Mets are left to wonder how Zack Wheeler is anything less than an elite pitcher.

There is plowing through a talented lineup, and then there is the manner in which Wheeler dismembered the Cubs on Saturday, all while the Mets were turning the Friendly Confines into a launch pad.

“Zack had a hell of a start today,” Pete Alonso said after the Mets stomped the Cubs 10-2 at Wrigley Field for a second straight victory. “He did a really good job stifling a good offense. That lineup is no joke, and for him to come out the way he did, that was awesome for us.”

Wheeler (6-5) rebounded from a string of uninspiring starts by allowing one run over seven innings that spanned 94 pitches. The right-hander got on a roll beginning in the second inning and retired 15 straight batters before Willson Contreras singled leading off the seventh.

Meanwhile, Alonso, Todd Frazier and Wilson Ramos all homered against Jose Quintana, allowing Wheeler a largely stress-free afternoon. Alonso’s homer was his 26th, tying him with Darryl Strawberry for the franchise rookie record. Alonso also became the first rookie in NL history with at least 26 homers before the All-Star break.

Over his previous seven starts Wheeler had allowed 11 homers, but good swings were tough to find against him Saturday. His only real work came in the first two innings, in each of which the Cubs put two runners on base. But Wheeler got Javier Baez to hit into a double play in the first inning and retired three straight batters after Jeff McNeil’s fielding error in the second.

“I felt good the past few starts, but finally the results were there today and I’m very happy with it,” Wheeler said. “The big lead, you’re glad to have it, but you have to go out there and pitch like there are zeroes up there.”

Wheeler had surrendered at least three earned runs in each of his previous seven starts. That included consecutive clunkers against the Yankees and Braves heading into Saturday that had raised his ERA to 4.94. That number dipped to 4.69 with his handling of the Cubs, but remains the highest among Mets starting pitchers.

“The first two innings allowed us to get where we got today,” manager Mickey Callaway said, referring to Wheeler’s outing. “It allowed us to continue to add on runs. His ability to pitch through some pretty stressful situations in those first two innings kept it where we could just relax and keep on swinging the bats. They didn’t get that run back after we scored.”

Ramos’ two-run homer in the fifth put the Mets on Easy Street with a 9-0 lead. Michael Conforto had delivered an RBI single earlier in the inning that put the Mets up by a touchdown and extra point.

Frazier hit a two-run homer in the third inning that gave the Mets a 5-0 lead. An inning earlier McNeil stroked a two-run single with two outs, after Ramos had walked and Amed Rosario had doubled in the inning.

The sizzling McNeil returned with an RBI double in the fifth. It gave McNeil three RBIs in consecutive games for the first time in his career. A day earlier McNeil had blasted a two-run homer and delivered a go-ahead RBI single to help the Mets beat the Cubs. Saturday’s rampage started with Alonso’s solo homer in the first

The Mets (37-40) have not won a road series since sweeping the Marlins in early April, but will have that chance Sunday against the team that leads the NL Central.

“We have got a chance to win a series on the road and that is tough to do, especially at a place like this, at Wrigley,” Alonso said. “I like playing here, but we’re in enemy territory, so we need to take every game that we can.”