The Baysox are 4-0 against the Phillies this year, and 10-1 against Southern Division teams. Bowie also ended a two-game losing streak, and remains in a first-place tie with the Harrisburg Senators in the Southern Division.
Bowie scored two unearned runs in the fifth to come back from a one-run deficit. Curtis Goodwin scored the go-ahead run on a fielding error.
Scott McClain had two RBIs and his eighth inning double was only the second extra-base hit on Bowie's road trip.
Vaughn Eshelman (3-1) recorded the win, and Armando Benitez saved his fifth game.