BOSTON�Freshman shortstop Jessica Warner went 4-for-6 with three extra-base hits and three RBIs to lead the UMBC softball team (19-13, 4-4 AE) to a doubleheader split with two-time defending America East champion Boston University (19-12, 5-3 AE) Saturday afternoon at the BU Softball Field. The Terriers won the first game, 8-2, but the Retrievers took the nightcap, 5-1.