For most of the season, the New York Mets have had a tough time getting more than one hitter going at the same time. On Wednesday, they had four with big games.Daniel Murphy homered twice, Scott Hairston hit a grand slam and David Wright drove in five runs to lead the Mets to a 17-1 rout of the Cubs.Ike Davis had a three-run homer and an RBI double as he combined with Murphy, Hairston and Wright to drive in all 17 runs — with each having at least four RBI — to help the Mets snap a four-game losing streak.The Mets had their highest scoring total since they had 18 at Wrigley Field on Sept. 5, 2010. It was also the most runs the Cubs have allowed since that game.Murphy hadn’t homered since last July 16 but went deep in consecutive innings to notch his first career multihomer game. His first homer was a two-out, two-run shot in the fourth, breaking open a 2-1 game.Davis’ four RBI matched his career high and Hairston had his second career grand slam.One night after having a 15-game hitting streak snapped, Wright had a sacrifice fly, two-run double and two-run single for his ninth career game of at least five RBI.The onslaught made for an easy afternoon for Mets starter Jonathon Niese (6-3), who struck out six and held the Cubs to one run over seven innings.Niese improved to 4-0 with a 1.89 ERA in day games this season. In June, he’s gone 3-1 with a 1.89 ERA after a poor May.The Mets’ first seven hits went for extra bases, six of them off Cubs starter Jeff Samardzija (5-7). Samardzija also walked four batters and gave up a career-high nine runs in 4 1/3 innings.He dropped to 0-4 with an 11.29 ERA over his last four starts after going 3-2 with a 2.26 ERA in eight starts from April 24 to June 4.

“I’d be lying if I weren’t concerned a little bit with the numbers, and the execution of pitches obviously hasn’t been too good for four or five starts now,” Cubs manager Dale Sveum said.

Casey Coleman fared no better in relief, allowing seven runs in 1 2/3 innings.The game was tied 1-all through three before New York got 15 runs in the middle innings.One night after stranding 12 runners in a 5-3 loss to the Cubs, New York left just four runners on base despite getting 16 hits and drawing seven walks. The ups and downs don’t bother Collins.

NOTES—Before the game, the Cubs designated RHP Randy Wells for assignment and recalled RHP Rafael Dolis from Triple-A Iowa. Wells has struggled with his control, walking 24 in 28 2-3 innings this season…..The Cubs walked Niese twice and have issued eight free passes to pitchers this season, second-most in the majors to Atlanta’s 10….This was not the Mets most one-sided win over the Cubs. In 1964,the Mets beat the Cubs 19-1 at Wrigley Field. In 1975,the Cubs lost to Pittsburgh 22-0 at Wrigley as Rennie Stennett went 7-7.