I got a message from Riot about the algorithm and they told me they couldnt help and that i should create a bug discussion. Just an example of my stats at my last games and please explain me why i always get A and A- with these stats.Support 2/3/9 Support 1/6/11 Support 1/6/16 Jungle 7/10/21 Jungle 8/4/15 Jungle 2/0/14 Jungle 0/2/12(And got C+ for that !!!).These are just an example of my games .please tell me why i get A and teammates with worse stats take S-
It's not all about K/D/A.
The only scores up there that I'd even consider for S-rank are 2/0/14 Jungle, 8/4/15 Jungle, and 2/3/9 Support - but again, it's not just based on K/D/A. It takes into account how many minions/monsters you've killed for Junglers (and I'm not sure what other criteria there are for the algorithm). You're not gonna get an S-rank unless you have a high rate of Kills and Assists to Deaths (e.g.** 8/4/15**) and above average farm for that champion in a game of x length.
For example, in a game that lasts 15 minutes, having 150 farm and being 6/0/4 will probably get you an S+. After a 41 minute game as Katarina, I got an S+ for being 24/6/10 with 318 minions killed (top lane).
So basically, you have to have a K/A:D ratio and farm that are considered above average for the champion you're playing, also depending on how long the game lasts.
