<p>National Science Bowl
National Ocean Science Bowl
Science Olympiad
AMC 8/10/12, AIME and USAMO for math
USABO
USACho
USACO
USAPho
Math League
HIMCM
JETS
AMATYC
Mandelbrot
iTest
ARML
College math tournaments (HMMT, SMT/RMT, Princeton, Duke Math Meet)
GBML (Greater Boston Math League)
Intel STS
Siemens</p>