[15] The football team competes in the Freedom Blue division of the North Jersey Super Football Conference, which includes 112 schools competing in 20 divisions, making it the nation's biggest football-only high school sports league.

[19] The Randolph football team set New Jersey state records by winning 54 consecutive regular-season and playoff games and going unbeaten in 59 straight games from 1986 to 1991, a record since broken by Paulsboro High School with 63 straight wins from 1992 to 1998.

[20] In 1983, the team won the program's first North II Group III title and finished the season 10–1 after a 22–9 win against Linden High School in the finals.

[21] The 1987 team used its defense to hold on to a 12–7 win in the North II Group III championship game against Summit High School, to finish the season with a 10–1 record.

[22] The 1988 team finished the season with an 11–0 record and extended its unbeaten streak to 28 games after winning the North II Group III state sectional title with a 15–12 victory against previously undefeated Nutley High School after scoring a last-minute touchdown in the championship game.

[24] The program won its fifth consecutive title and finished the season ranked 11th in the nation by USA Today after winning the 1990 North I Group IV sectional championship game with a 22–21 win against Montclair High School; the win was the team's 49th consecutive victory, breaking a record of 48 games without a loss (including two tie games) that had been set by Westfield High School from 1968 to 1973.

[40][41] The team won the 2011 Public A title with a 1–0 win against Montgomery High School at the Prudential Center.

[42][43] The boys' lacrosse team won the Group III state championship in 2005, defeating West Morris Central High School in the tournament final.

[citation needed] In 2013, the small varsity team was second in the region behind national champions Burlington High School by 3 points.

[46] The 2010 baseball team won the New Jersey Group IV state championship with an 8–4 win over Jackson Memorial High School.