Okay, so this will not be news to anyone, but this achievement really does suck, due in part to users quitting, and the match being recorded on EA sports, but not towards the achievement. I'm currently on 156 matches, and no achievement. With no indication (without recording separately) as to how many were full, finished matches. Very annoying.
FIFA 11 - 100 ranked matches online
This edit will also create new pages on Giant Bomb for:Beware, you are proposing to add brand new pages to the wiki along with your edits. Make sure this is what you intended. This will likely increase the time it takes for your changes to go live.