Ranked Placements.

So this ranked season I went 8-2 in my provisionals, and then somehow ended up in bronze 3. Had positive kda every single game, as well as 2.0 kda or higher almost every game. I was bronze 2 last season going 3-7, and bronze 1 the season before that going 3-7. Rito pls? . I've heard about this happening to lots of people :/