University of Maryland Math Competition
- Open to all high school students in Maryland and the District of Columbia, with past results, problems and solutions.
- http://www.math.umd.edu/highschool/mathcomp/

Johns Hopkins University High School Math Tournament
- Conceived in 1998 by Chirag B. Patel, it is one of the largest math competitions for high school students on the Eastern Coast of the USA.
- http://www.math.jhu.edu/~mathclub/tourney.html