Yes, something seems wrong here. I don't know how you could have it pinned all the way through the corner either, unless you were in too high of a gear. Also, you must be a very good rider and he must really suck in the corners for you to be able to corner faster than him. It seems entirely backwards.
It's kind of like that old 70's tv show Chips. They were riding Kawa KZ1000's, which I also rode back then. During the chase scenes, they'd always catch up in the corners and lose ground on the straights. Exactly the opposite of what would happen in real life.