Marlins 6, Mets 5 (11 innings)
MIAMI -- Third baseman Martin Prado hit a two-out, walk-off RBI double down the right-field line, leading the Miami Marlins to a 6-5 win in 11 innings over the New York Mets on Friday night at Marlins Park.
Miami center fielder Christian Yelich scored from first on Prado's career-high fifth hit of the game.
Mets reliever Eric O'Flaherty, who has struggled mightily since he was acquired, gave up the winning hit.
Marlins reliever Brian Ellington (1-0) earned his first career win.
The loss was disappointing to New York (74-60), which leads the National League East over the second-place Washington Nationals. The Marlins (56-79) are playing the role of spoilers.
Mets center fielder Yoenis Cespedes had a big game with a triple and a two-run homer, helping New York rally from a 3-0 deficit. The Mets took a 4-3 lead on Cespedes' homer, but the bullpen could not hold the advantage.
Neither starting pitcher earned a decision. New York's Jacob deGrom allowed three runs in six innings. Miami's Tom Koehler allowed two runs in six innings.
Miami opened the scoring by getting five hits and three runs in the fourth inning. Prado led off with a double down the third-base line, scoring on first baseman Justin Bour's soft groundball that squirted off the glove of shortstop Ruben Tejada, into center field.
After loading the bases with no outs, Miami got a sacrifice fly by catcher J.T. Realmuto and a run-scoring single from shortstop Miguel Rojas. DeGrom threw 33 pitches in the inning.
The Mets cut their deficit to 3-2 with two runs in the sixth. Cespedes led off with a triple off the wall in center and scored on a groundout by left fielder Michael Conforto.
Mets catcher Travis d'Arnaud walked and came around to score on a single by first baseman Kelly Johnson, who had struck out in his first two at-bats. D'Arnaud appeared to be beaten on the throw home by right fielder Marcell Ozuna, but his evasive dive allowed him to score.
New York took a 4-3 lead in the seventh with a two-run homer by Cespedes, who took an outside 3-2 pitch and went with it to right-center. It was Cespedes' 29th homer of the season and his 11th since the Mets acquired him on July 31.
The Mets brought in lefty reliever Sean Gilmartin to try to protect their lead in the bottom of the seventh, but he gave up singles to the two batters he faced -- left-handed hitters Dee Gordon and Yelich -- and was removed.
A run-scoring single by Prado against reliever Addison Reed tied the score 4-4. Miami took a 5-4 lead when Ozuna battled back from an 0-2 count to work a bases-loaded walk.
The Mets loaded the bases with two outs in the eighth, but reliever Bryan Morris got third baseman David Wright to ground out, ending the threat.
Marlins closer A.J. Ramos blew a save chance in the ninth despite getting the first two outs in the inning. Johnson tied the score with an RBI single, the Mets' third straight hit.
NOTES: Assistant GM John Ricco said the Mets will not shut down RHP Matt Harvey, who has pitched 166 innings, one year after Tommy John surgery. Harvey's agent, Scott Boras, said doctors have recommended his client pitch no more than 178 innings this year. ... Mets 1B Lucas Duda (back) will start a rehab assignment Saturday at Double-A Binghamton and could return to the team Monday against the Nationals. ... Mets OF/1B Michael Cuddyer (right wrist) was not available Friday. It's the first wrist injury of his career. ... 1B/2B Daniel Murphy (left quadriceps) is out until at least Sunday, leaving the Mets to start their fourth option at 1B, Kelly Johnson. ... Mets LF Michael Conforto hit clean-up for the first time as a big-leaguer. ... Mets SS/2B Wilmer Flores was not available to start after flying back from Venezuela, where his grandfather suffered a heart attack. ... Marlins RHPs Jarred Cosart (vertigo) and Jose Urena (bruised left knee) were activated. ... Marlins INF Donovan Solano was recalled from Triple-A New Orleans.