<p>Do you get an A*'s or A+'s in the British System? If not, then your grades should be fine. Your rank is unweighted right? If so, then you should be alright, if you can show that it is a very challenging courseload e.g. there isn’t a “Adv. Chemistry” or “Higher Mathematics”, that sort of thing.</p>
<p>With the rank, is it because some kids have taken easy subjects and gotten A’s? Or is it that there are more kids doing harder subjects (which often is the reason)?</p>
<p>If you’ve got good EC’s (you’ve mentioned IMO), then you’re in with a great chance. It’ll be difficult to say for sure; it’s near impossible to really gauge chances these days. Good luck anyway!</p>