I am a Chinese boy and a junior in U.S high school. This year I get 144 on AMC 12 A and 12 on AIME I. How much will my math accomplishments boost my chance to get into Caltech?
Virtually everyone at Caltech is good at math. The 25th percentile for SAT 2 Math scores was 800. Its definitely good that you have AMC and AIME, but by no means is it a guarantee of anything. Best of luck