Actually, I was just watching the anime version of Claymore, and I noticed that Galatea, who was #3, had a hard time dealing with Dauf. I'm not sure what rank Dauf was before he awakened, but I don't think he was a single digit (not sure). I know there are differences in the anime and manga, but I'm pretty sure this battle was pretty much copied from the manga (I don't remember that far back.)