Bronze 5 and 5 win 5 loses
Why riot ? i win 5 ranked and 5 lose and you get me in bronze 5 . why?? please get me in other div!!!

Why riot ? i win 5 ranked and 5 lose and you get me in bronze 5 . why?? please get me in other div!!!

Because you were bronze last season. The placements almost always put you a full division below where you ended last season. I was Silver 5 and got placed Bronze 4, that's just how it works.
Because you were bronze last season. The placements almost always put you a full division below where you ended last season. I was Silver 5 and got placed Bronze 4, that's just how it works.
Also it goes off of the hidden number of your MMR and there are some websites that can give you a good guess at what it is for you like op.gg as an example. It does usually put you a full division down of that though.
the placement matches is only there to make you waste your time 10 games until you actually start making league points. besides that , the system will alwasy put you 1 full league under where you left off last season no matter how you perform.