Until the late innings, the pitching was the story. Harvey threw 49 pitches in 2 2/3 innings, allowing two runs on six hits with two strikeouts. Mets prized prospect Noah Syndergaard was impressive, striking out five while allowing one hit in 2 2/3 innings. The right-hander also threw 49 pitches.
Alvarez, an All-Star for Miami last year, rebounded from a shaky two-run first inning and was solid over three frames.
Harvey, recovering from Tommy John surgery, avoided major damage in the second inning, getting Derek Dietrich to hit a soft liner with the bases loaded that resulted in a double play, as Jarrod Saltalamacchia took off from first. Harvey's fastball was clocked mostly in the 93-96 mph range -- topping out at 98 -- and his changeup was at 89 mph.
Alvarez, throwing between 91-94 mph, got into a jam in the first inning, allowing back-to-back RBI doubles to Kirk Nieuwenhuis and Ruben Tejada. But in the second and third innings, the Miami All-Star right-hander breezed through the Mets, retiring six of seven.
Ichiro Suzuki had an RBI single for Miami off Harvey in the second inning, and Giancarlo Stanton blasted a run-scoring double that tied the game in the third.
New York claimed the lead in the fourth inning off Brad Hand. Tejada led off with a double, and he scored on what could have been an inning-ending double-play ball. But on Dilson Herrera's grounder to short, Reid Brignac made a wide throw that pulled second baseman Dee Gordon off the bag.
Up next for Mets: National League Rookie of the Year Jacob deGrom will return to the mound Thursday (1:10 p.m. ET, MLB.TV) against the Nationals at Tradition Field. The Mets will also receive their second look at left-handed pitching prospect Steven Matz, who will begin this season as a starter at Triple-A Las Vegas. Matz is not a bullpen candidate at this time, even if lefty specialist Josh Edgin misses time with an elbow injury.
Joe Frisaro is a reporter for MLB.com. He writes a blog, called The Fish Pond. Follow him on Twitter @JoeFrisaro. This story was not subject to the approval of Major League Baseball or its clubs.