United States of America Mathematical Talent Search
The United States of America Mathematical Talent Search (USAMTS) is a proof-based mathematics competition open to all United States students in or below high school. == History == Professor George Berzsenyi initiated the contest in 1989 under the KöMaL model and under joint sponsorship of the Rose–Hulman Institute of Technology and the Consortium for Mathematics and its Applications.
Source: Wikipedia — United States of America Mathematical Talent Search (CC BY-SA 4.0)