Union County and was established following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association. Prior to the 2010 reorganization, the school had competed in the Watchung Conference, which consisted of public and private high schools in Essex County, Hudson County and Union County in northern New Jersey. With 5,049 students in grades 10-12, the school was classified by the NJSIAA for the 2019–20 school year as Group IV for most athletic competition purposes, which included schools with an enrollment of 1,060 to 5,049 students in that grade range. The football team competes in Division 5A of the Big Central Football Conference, which includes 60 public and private high schools in Hunterdon, Middlesex, Somerset, Union and Warren counties, which are broken down into 10 divisions by size and location. The school was classified by the NJSIAA as Group V North for football for 2018–2020. The boys indoor track team won the all-group state title in 1952 as co-champion with Thomas Jefferson High School. The football team won the North II Group IV state sectional championships in 1981, 1988, 1989, 1997, 1999, 2000 and 2006, and won the North II Group V state sectional title in 2012. The 1988 team finished the season with a 10-1 record after winning the North II Group IV state sectional title with a 13-12 victory against Morris Knolls High School in the championship game. The team won the 1999 North II, Group IV sectional championship with a 26–14 win over Montclair High School. In a season in which the team had six shut outs and gave up 61 points, the 2000 team won the North II Group IV title with a 13-7 win in the championship game, their second consecutive title won against Montclair as its opponent in the finals. The football team won the 2006 North II Group IV sectional championship, defeating Phillipsburg High School by a score of 14–9 in the tournament final. The 2012 team finished the season with a 11-0 record after winning the North II Group V state sectional title with a 37-33 win against Piscataway High School in the tournament final. The baseball team won the Group IV state championship in 1983 (defeating Middletown High School North in the tournament final), 1986 (vs. Shawnee High School) and 1994 (vs. Howell High School). The 1983 team finished the season with a 22-3