[9] The University High School Phoenix[2] compete in the Super Essex Conference, which is comprised of public and private high schools in Essex County and was established following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association (NJSIAA).

[12] In 1989, the boys' track team, led by senior Darrell Davis, won the North II, Group I state sectional championships.

[13] The team won the North II, Group I state sectional championship in 2007 with a 66–50 win over Bloomfield Tech High School[14] and moved on to win the Group I state championship, defeating Palmyra High School by a score of 80–55 for the title.

[15] The team made it to the 2007 Tournament of Champions, defeating Willingboro High School, 71–58, in the first round, Trenton Catholic Academy, 61–51, in the semis and Trenton Central High School, 68–62, in the finals to win the tournament.

[16][17] The 2016 beat Bound Brook by a score of 81-55 in the Group I playoff finals at the Pine Belt Arena[18] and as the sixth seed in the Tournament of Champions lost in the quarterfinals round to third-seeded Manasquan High School by 57-49, despite leading by seven points in the last five minutes of the game.

[23] University High School is a college preparatory institution, where students can pick from three academies; Law, Teaching, or Fields of Humanities to specialize in and complete courses based on their choices, though students are free to specialize in the major of their choice.