2011 rankings (an increase of 5 positions from the 2010 ranking) which were based on the combined percentage of students classified as proficient or above proficient on the mathematics (86.9%) and language arts literacy (97.2%) components of the High School Proficiency Assessment (HSPA). In the 2011 "Ranking America's High Schools" issue by The Washington Post, the school was ranked 56th in New Jersey and 1,647 nationwide. The Indian Hills Academic Decathlon Team, coached by Lisa Acquaire from 1995-2009, represented New Jersey in the National Competition in 2001 (Anchorage, AK), 2006 (San Antonio, TX), and 2007 (Honolulu, HI). At the competition in Alaska, the Indian Hills Team was awarded Rookie of the Year and member Brent Morris earned a medal for his overall score that placed him as the third highest scoring decathlete at his level. In 2010, under coach Michael Catelli, the team ranked second in the state and the 2012 team finishing third in the statewide competition. In 2014 the team competed in the online national competition and was ranked second in the nation in their division. Athletics The Indian Hills High School Braves compete in the Big North Conference, which is comprised of public and private high schools in Bergen and Passaic counties, and was established following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association (NJSIAA). The school had participated in the North Bergen Interscholastic Athletic League before the 2010 realignment. With 808 students in grades 10-12, the school was classified by the NJSIAA for the 2019–20 school year as Group III for most athletic competition purposes, which included schools with an enrollment of 761 to 1,058 students in that grade range. The football team competes in the Ivy White 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. The football team is one of the 12 programs assigned to the two Ivy divisions starting in 2020, which are intended to allow weaker programs ineligible for playoff participation to compete primarily against each other. The school was classified by the NJSIAA as Group III North for football for 2018–2020. Indian Hills High School has a long-standing rivalry with Ramapo High School, most notably with the school's football, lacrosse, and ice hockey teams. The Indian Hills-Ramapo football rivalry had been a yearly tradition