The boys' basketball team won the Group III state championships in 1941 vs. Bound Brook High School, 1943 vs. Merchantville High School, 1946 vs. Woodrow Wilson High School, 1948 vs. Thomas Edison High School of Elizabeth, 1954 vs. Linden High School and 1955 vs. Springfield High School (since renamed as Jonathan Dayton High School), and won the Group II title in 1971 vs. Haddon Heights High School. Down by six points after the first quarter, the 1941 team pulled ahead by outscoring Bound Brook 12-4 in the second quarter and 11-2 in the third to win the Group III title by a score of 38-31 in the championship game played at the Elizabeth Armory. Led by Gerald Calabrese, the 1943 team defeated Merchantville by a score of 42-26 in the Group III final; a proposal was made to have Cliffside Park play Group II champion Weehawken High School in a fundraiser for the American Red Cross. The 1948 team held off a furious late effort by Thomas Edison of Elizabeth to win the Group III title by a score of 49-47 in the championship game played at the Elizabeth Armory before a crowd of 4,000.