I am going to parse this opening thread and show why you got bronze
I'm not entirely sure how ranking works,
This becomes painfully obvious when you read the rest of the thread. More later
but I really want to know why I got the rank that I did. I won 7 out of 10 of my ranked games and had a positive KDA every game except 1 or 2
KDA means nothing in a team game. The fact you are using it in a objective base game says a lot about how you play. The rank system never has nor will use champion mastery or KDA. So stop bothering with those metrics as a reason why you should not be X rank.
So why did I get bronze V? I'm not trying to say I'm better than everyone but I do want to understand the logic behind the placement.
You finished bronze last season, do you really think that you were playing against all Gold level + opponents in your placements? The system moved everyone down from the last season finish; this process is called a soft reset. Challenger level players placed in gold and plat after their placements.
You wen 7/10 against other bronze level players. That does not mean you get to magically bump you higher than you were last season.
This thread is an example of why you are bronze by the way; horrible logic and assumptions based off the thought you should be better.