Riot: "3/0/1 top lane Mao? S-. 1/4/21 Support Zilean? Best I can do's an A+"

https://orig00.deviantart.net/53c2/f/2016/308/c/0/support_sivir_by_dragontroopbeta-danavee.jpg S, even though I was queued ADC.

Meanwhile, I had the exact same KDA as Alistar last week and got an A-.

4/4/3 wukong with 200 something farm s- i had relic shield btw

Do you still not understand how the rating system works?

It happens. The idea of the rating is that I have to do better than say like 75% of other players in that role with that champ. I had a frustrating time, recently, I was Blitz Support, 1/1/9, highest vision score, helped take dragon and 3 towers. Enemy team surrendered at 15 mins. Everyone got an S- or higher but me, think it was an A ... only had 23 farm... should have farmed more.

1/4/21 isn't good enough for an S. Die less and farm more,

I went 7/0/1 and had 100 something cs in a 15 minute game on Shen and only got an S- I guess it's my fault the enemy team forfeited before I could get more farm.

i'm pretty sure you lost the s from the deaths because your warding was quite generous