Mark Bayly hit a grand slam in the fourth inning to help Navy to a 15-2 victory in the first game, and reliever Drew Tanner escaped from a seventh-inning jam to help Navy complete a baseball doubleheader sweep of Maryland with a 4-1 victory today.

Navy, which won the Eastern Intercollegiate Baseball League and a spot in next month's NCAA tournament by beating Pennsylvania Friday, has won 12 straight games and is 28-8. Maryland is 10-21.

Navy had 12 hits off four pitchers in the opener and took advantage of six Maryland errors. Navy scored four runs in the second inning and three in the third. Left fielder Bayly's first career homer, a grand slam that went over the left field wall, gave Navy a 12-1 lead.

All four Navy runs in the second game were unearned as Maryland had four errors. Freshman left-hander Sean McCartney, making his first collegiate start, was the winner, with some relief help from Tim Taylor and Tanner.

Tanner entered in the seventh and final inning with the bases loaded and one out, and struck out Maryland's Preston Warner and Chris Burdick to end the game.

James Madison 9-4, American 4-6: Joe Cilio's two-run double keyed a four-run first inning as American (8-23, 3-13) gained a split of a Colonial Athletic Association doubleheader. Vince Liberti allowed five hits and struck out six for the victory. Mike Mathews' fifth-inning grand slam helped visiting James Madison (31-11, 11-5) win the first game.

Virginia 7, Rider 1: Andy Kavulich earned his seventh win as he struck out six, allowing only two hits in the first eight innings. Kent Savedge was three for four with three singles and two RBI for Virginia (25-19). Rider is 21-12.