1. Most of the normal ones will be positioned between silver and platinum, which is not fixed, but will not exceed platinum I.
2. Ranking in positioning matches is determined based on game performance. The more times you get MVP, the higher your rank will be.
For example: a ten-game winning streak without an MVP would be ranked around Silver 4, and a ten-game winning streak for most MVPs would be around Gold 3.
3. Therefore, you still need to look at personal ratings, and the win won't be that high.
There are ten League of Legends positioning matches in total, and your rank will be determined based on the player's performance in the ten games.