Harvard, the defending Eastern Intercollegiate Baseball League champions, swept Navy, 8-2 and 3-1, today, handing the Midshipmen their first losses of the season.

A six-run sixth inning led the Crimson past Navy in the opener, with Harvard capitalizing on four hits, two walks and a Navy error. Harvard pitcher Larry Brown, who was second in the nation with an 0.95 earned run average last season, held the Midshipmen to four hits, striking out eight and walking none.

In the second game, right fielder Mike Stenhouse knocked in the game-winning runs with a fifth-inning triple.

In other games, Catholic (7-7) ran its winning streak to seven with 2-1 and 5-1 wins over the University of Baltimore. In the opener, sophomore John Sieve tossed his third straight complete game, striking out nine; in the second, Cardinal right fielder Harry Blumenknantz extended his hitting streak to 12 games.

Maryland topped North Carolina State, 7-2, in Raleigh, NC, to raise its record to 5-12-1, 3-1 in the Atlantic Coast Conference. The Terps took the lead for good in the fifth inning with a run-scoring single by Neal Herrick and a steal of home by John Brisee.

Richmond routed Georgetown, 22-1, as Tom O'Connor batted in six runs and scored four more. Spider hurler Mark Bowles fanned 12.

Temple swept American) 12-7 and 7-4 in Philadelphia, dropping the Cardinals to 0-4 in the East Coast Conference. Temple has won 11 in a row.

In Chapel Hill, N.C., reliever Greg Norris pitched out of a bases-loaded jam in the seventh inning as North Carolina beat Virginia, 4-2.