Thanks. My data here: Initial Competitive Skill Rating, Decrypted (for me, a gold player), would have predicted that your initial placement with that record is 2995. So my estimation is that the difference to your actual placement of 3308 is based on your statistical performance being higher than a gold player. It may have just helped for your first few matches, though, before you were “diamond”.
You can respond to this or not. I’m primarily just gathering data on new accounts here, to make How Competitive Skill Rating Works (Season 10) more accurate.
Thanks again.