Harvey struggles in Mets' loss to Marlins
Logan Morrison's two-out single broke a scoreless tie in the sixth. Donovan Solano added a two-run single later in the inning.
Harvey (8-3) allowed three runs and five hits in 5 2-3 innings. The NL's All-Star starter struck out eight.
Harvey's three shortest outings this season have come at Marlins Park. The All-Star is 0-1 with a 3.52 ERA in four starts against the Marlins this season while going 8-2 with a 1.97 ERA against the rest of the majors.
The Marlins are the lowest-scoring team in the majors and have the worst record in the NL.
Koehler (3-6) gave up five hits, walked five and struck out five.
Reliever A.J. Ramos pitched two innings and Steve Cishek worked the ninth for his 23rd save in 25 chances.
It was the first time the Mets had been shut out since May 25 against Atlanta.
New York went 0 for 7 with runners in scoring position. They left a runner in scoring position in five of the first six innings and stranded 11 overall.
Ike Davis popped out with the bases loaded to end the third. Juan Lagares tripled with one out in the fourth, but the Mets could not drive him in, and Jake Marisnick made a diving catch in center field and threw to first to double up David Wright to end the fifth.
Meanwhile, the Marlins managed just one hit through five innings, a single by Koehler in the third after Harvey struck out four in a row.
Juan Pierre pinch-hit for Koehler and singled to lead off the sixth, making him 7 for 15 lifetime against Harvey. Christian Yelich followed with a single that put runners at the corners with no outs.
Harvey retired the next two batters, but Morrison singled for a 1-0 lead. After Harvey hit Ed Lucas with a pitch to load the bases, Solano singled to chase Harvey.
Justin Turner and Lagares each had two hits for the Mets.
NOTES: Harvey is 0-1 with a 4.50 ERA in three starts at Marlins Park. ... Since June 16, Miami starting pitchers have allowed three of fewer runs in 35 of 40 games. ... Marlins rookie RHP Jose Fernandez (7-5, 2.71 ERA), who is coming off a 13-strikeout performance against the Pirates, will take the mound on Friday against Cleveland RHP Ubaldo Jimenez (8-5, 4.17) to wrap up the final series in a 10-game homestand. The Mets will travel to Kansas City and start RHP Dillon Gee (7-8, 4.13) on Friday against RHP Wade Davis (5-9, 5.50).