Navy moved into first place in the Eastern Intercollegiate Baseball League with a doubleheader sweep over Cornell, 9-2 and 4-0, yesterday in Annapolis.

The Midshipmen are 11-2-1 in the EIBL and will play Army today at 1 p.m. at Navy in a doubleheader that may determine if Navy will receive an NCAA tournament bid.

In Harrisonburg, Va., Ed Burke pitched a one-hitter in the first game to give the Hoyas a 4-2 victory over James Madison. The Dukes (38-13) won the nightcap, 10-9.

In Lexington, Va., Don Van Steelant had five hits, three of them home runs, to drive in nine runs, Mike Esser had five hits and two RBI and Tom Davies had four hits and scored four runs to lead George Mason (17-19) to a doubleheader sweep, 14-6 and 14-11, over Virginia Military Institute (10-29).

At Mount St. Mary's, Jim McKenna had four hits and Mount St. Mary's swept a doubleheader from the University of the District of Columbia, 14-2 and 17-7.

Maryland ended its season with a 9-5 victory over Catholic University at Shipley Field. The Terrapins broke a 5-5 tie with four runs in the eighth.

Montgomery-Rockville won its seventh straight game, 9-6, over Howard Community College at Rockville.

Anne Arundel Community College took a 5-1 home field victory over Prince George's Community College.