Duke scored five runs in the second inning and went on to break Maryland's five-game winning streak, 8-6, in an Atlantic Coast Conference baseball game yesterday at Shipley Field.

Duke's first four batters singled in the second, as Mark Carlozzi drove in two runs and Seth Edwards one. Two more runs scored on a fielding error.

Alex Pauley hit a grand slam in the third as the Terrapins (14-16) closed to 5-4. But a two-run homer by Bud Nixon put Duke (18-12-3) ahead, 7-4, in the fourth inning.

At Montgomery-Germantown, Charles Community College defeated the hosts, 1-0, as Steve Debar pitched a two-hit shutout. Charles is 6-3 and Montgomery Germantown 2-8.

At St. Bonaventure, Kevin Fitzgerald's homer to right-center field in the first helped George Washington to a 9-8 Atlantic 10 victory. Karl Feinhauer (2-2) pitched 4 1/3 innings in relief to earn the win for the Colonials (14-16-1, 4-2).

At Charlottesville, Tim Burcham struck out 13 batters and pitched his seventh complete game in nine starts to lead Virginia past Wake Forest, 4-3, in an ACC game.

Burcham, the ACC strikeout leader with 94, improved to 7-1 and moved Virginia to 29-10 overall, 8-4 in the ACC. Wake is 20-21-2, 0-12-1.

At New Haven, Conn., Navy received complete games from pitchers Steve Wieman and Rob Lyon to sweep an Eastern Intercollegiate Baseball League doubleheader from Yale, 8-1 and 10-2. Only seven of Navy's 18 runs were earned as Yale (7-17-2, 0-6) committed 11 errors. Navy, 17-4-1 overall, leads the league at 8-2.

At American, William and Mary (10-20) rallied in both games to take an ECAC South doubleheader, 9-8 and 11-7, from American (3-13-1). William and Mary trailed, 8-2, in the first game. The Indians scored four runs in the seventh inning of the nightcap. American catcher Tony Pinto hit two home runs in the second game and finished with six RBI.

At Gallaudet, Randy Henry hit a homer in each game to lead Penn State-Capitol (9-4) to a doubleheader sweep, 9-6 and 14-9. Tom Perkins, the losing pitcher in the second game for the Gallaudet (2-9), hit a two-run homer in the opener.