I'm equally concerned with how Sivir got an S.
Get carried HARD. I mean an ADC with 3 kills almost definitely got carried...
Currently it judges really hard on Supports. It basically sees them as another lane meaning you have to get kills to get a better score. Currently they said they are working on it to make it easier for supports to get better grades without having to steal kills from their carries or other allies. Hopefully it will be up soon because it is annoying to not get an S when you do really well in assists.
Problem is next game i had a lot worse score and got S....and my premade friend is getting S almost every game whoutout getting his score on mind,its like they swapped our grades....
Hm, I have no idea why then I know every time I want to get an S on a support I have steal kills from my ADC or I just end up with A+. All well hopefully they fix it when they do the touch up for supports.