Fielder's two-run homer came off Mets starter Dillon Gee in the fourth inning. Delmon Young had two hits for the Tigers, including a two-run single in a four-run fifth — all unearned — against Mets left-hander Chuck James.
Gee struck out five in four innings in his third spring start.
Detroit starter Max Scherzer did not get through the Mets' four-run third. After giving up a hit and two walks and hitting Zach Lutz with a pitch, Scherzer was replaced by Casey Crosby.
Daniel Schlereth pitched two innings of shutout relief for the win. Quintin Berry drove in Andy Dirks with the winning run in the 10th inning.