Stanton's first Grapefruit League hit, a single off the glove of third baseman Eric Campbell, was Miami's first hit of the game. Miami cashed in a pair of Rafael Montero walks.
The Marlins have not announced their regular-season rotation, but Alvarez is regarded as a strong frontrunner. The right-hander was an All-Star last season, and assumed the role of ace after Jose Fernandez underwent Tommy John surgery in June. In two scoreless innings, Alvarez allowed one hit and struck out one. Efficient, he threw 22 pitches, with 16 strikes.
Matz got off to a wild start, hitting Dee Gordon with the first pitch he threw. But after Gordon stole second, Matz retired six straight in his two innings.
Kirk Nieuwenhuis had a double in the fourth inning for the Mets, and Dillon Gee threw 2 2/3 innings of one-hit, scoreless relief.
Up next: After a split-squad day on Saturday, the Mets travel on Sunday to Fort Myers to face the Red Sox. Lefty Jonathon Niese will made his Grapefruit League debut. New York also has scheduled Tyler Pill, Hansel Robles and Cody Satterwhite to pitch. The game will air live at 1:10 p.m. ET on MLB.TV and Gameday Audio.
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.