The New York City Interscholastic Math League (NYCIML) is a non-profit organization that organizes mathematics competitions to all participating member schools in from New York City and beyond. Its Executive Committee consists of college students who are NYCIML veterans.
The league has four different levels of contests for students of different ages, experience levels and mathematics backgrounds. Each team consists of five students. Students compete individually and against different teams at the same time
References
New York City Interscholastic Mathematics League Wikipedia(Text) CC BY-SA