why i have 9 wins 1 loss in first 10 matches,i only got bronze5

Winning 9 games against Bronze 5 players is not an accomplishment.

Because rank reset every year, you're welcome.

Your results don't depend only on your 10 placement matches. There's a million threads talking about this. Just look around a bit.

riot has a new and improved system that seeks out baddies and puts em in b5

how is it even possible ? I only win 3/10 and place in silver V. you lying dog

Its because of your mmr.

I went 5-5 and got Bronze IV

Almost everyone got that O_O

There are so many factors involved when it comes to placements. Winning or losing barely even matters. If you ward, itemize correctly, have a good KDA, and participate in objectives, then you'll likely be placed in silver or gold.

Don't let the "Defeat" screen get you down when doing placements. You literally only have to worry about your own performance. Keeping that in mind, you got placed in bronze. You are likely doing something wrong.