<p>I got a B in calculus BC when I was sophomore (first semester), since I never did homework and was generally immature. How much will this hurt me?</p>
<p>I have made the USAMO twice, not counting this (senior) year. Also did very well on USAPHO AND USACO (won't say how much). I have 2350+ SAT, and perfect subject tests and 5s on ~16 AP tests. 2 Bs in French, and As in all other classes (UW: ~3.93, W: ~4.63).</p>
<p>Many of us who post on this forum had a couple of B’s in high school, many in math or science. Especially given an otherwise strong application, it won’t even be a consideration.</p>
<p>It may not hurt you at all with MIT, especially in light of your USAMO qualification. The only way I could see it hurting you is if you take an apologetic tone at all or act like it is a big deal. Act the same way you would have if you had straight A’s.</p>
<p>While many people applying to MIT have a 4.0 unweighted GPA and are even valedictorians, there are also many people who get in who do not have 4.0’s and even got B’s in math and science classes. What is important is the match between you and MIT, which is described on this website: [The</a> Match Between You And MIT | MIT Admissions](<a href=“http://mitadmissions.org/apply/process/match]The”>What we look for | MIT Admissions).</p>
<p>I wouldn’t even sweat it. There’s another thread floating around with some super genius kid on paper who did not get accepted to MIT. </p>
<p>Consider me biased, but from my experiences with schools like Caltech, MIT is by far the most diverse and well-rounded student body. MIT picks kids that they think will make an impact post-graduation. B’s are fine. You’ll get plenty of them if you get in (probably).</p>