<p>Wow! It’s impressive that you got an 800 on the USH as an international student. A 2400 on subject tests will probably make a large difference on the academic side of admission, but schools like Ivy Leagues get plenty of 4.0 2400 type applicants that they reject. Your score will help your academics part of admissions, the rest is up to ECs, essays, recs, etc.</p>