Riot I'm really mad at you...
Because I just played Jax went 14/2 1v5ed their team. And yet after all that. I got an S rating, where our evelyn went 3/5 had half my cs and got an S+... No joke you can look.
http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/1882077932/208719826?tab=overview