Baker fell to 1-1 on the year, while the Eagles improved to 1-1. Tomas Catania scored the matches lone goal in the 36th minute after a long pass over the top from Bruno Moraes.
Baker attempted just four shots on the afternoon and the match proved to be quite physical with 11 fouls called on the Wildcats and five on AIB.
The Eagles took eight shots with three on goal and Baker's Matt Bickley had two saves on the day.
BU will next take on Oklahoma City University on Saturday, Aug. 31 at 5:30 p.m. at North Park. Live stats will be available at www.bakerwildcats.com.