<p>How much do American universities know about Canadian programs and contests? For example would they know about Shad Valley, or the Euclid Math Contest? I already sent in my application, but i’m worried now because I didn’t offer any explanation. Should I send an additional info letter explaining what those programs and contests are?</p>
<p>If they don’t know about it, they’d probably look it up. Chances are that they DO know about them, especially since Shad and Euclid are nationally recognized programs/contests.</p>