Except for the two weeks prior to this week, I always get 11-14 wins depending on how many free wins I get. Most of the time, no matter what, I wll have very bad gameplay and inexplicable things happens when I've got 10 wins. Thats usually when no matter what I do things will not go my way and I end up with 11 wins.
At first, (3 years ago), I thought this was just me but when it happends every weekend you eventually realize EA can only give away so many rewards to protect their market and the people buying packs. In stark contrast, I win almost all 10 of my champions playoffs games on the regular.