Brett Baty’s first-inning grand slam set the pace and the visiting New York Mets held on to beat the Atlanta Braves 8-5 on Monday in the opener of a three-game series. Bryce Elder (8-7) worked five innings and allowed seven runs on 10 hits, ending a string of 18 consecutive games in which Atlanta starters allowed three runs or fewer. Kremer limited the Orioles to one run on one hit in seven innings with seven strikeouts. Simeon Woods Richardson (2-7), also promoted from Triple-A on Monday, allowed four hits and a run in three innings of relief. Alec Burleson had two hits and three RBIs for the Cardinals, and Ivan Herrera added two hits and two runs.