Stats tab says I am worse than bronze players and I am plat 4? So all in this game is about luck?

As I said on my main Vel'koz which I play mid or supp ( if I use Stats in game it says I am worse basically than average of every tier (bronze to challanger). Is this tier scale accurate? I usually do good in games when I play Vel, I have the most damage, carry games, etc
Report as:
Offensive Spam Harassment Incorrect Board