 Baltimore City College began competing against other secondary schools in 1919 when it was invited to join the Maryland Scholastic Association ( MSA ) as a founding member . After 75 years of governing Baltimore @-@ metro area boys high school athletics , the Maryland Scholastic Association dissolved in 1993 when its 15 public school members , including City College , withdrew from the league to join the Maryland Public Secondary Schools Athletic Association ( MPSSAA ) . The Knights currently compete with other public secondary schools in the MPSSAA ( Class 3A , North Region , District 9 ) , more commonly referred to as the Baltimore City League ( Division 1 ) , but routinely schedule contests against area private schools in various sports . 
