Suppose that you have 90 point in first tier of gold.

You've been getting 20-24 points per each win.

you'll be granted a chance of promotion to the next level.

So you win your next game.

howeveer, I'm not sure whether you'll be able to achive your goal.

You may end up earning only 2 league points.

The situation is ridiculous; can Riot even explain this??