Bowie Baysox catcher Carlos Perez hit a go-ahead, three-run home run in the third inning off Akron Rubberducks right-hander Jake Paulson (5-5), while Baysox right-hander Dean Kremer (3-4) pitched five innings, allowing two runs, and right-hander Michael Baumann closed the game with four shutout innings in a 5-2 win over the RubberDucks in the openerof a four-game weekend set at Prince George’s Stadium on Thursday night.