S rating?
First, I am relatively new to League and this is around the third online game I have played, I have played many private games with friends before though.
Stats- https://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2676353144/233859491?tab=stats
So I was playing as Janna and I felt like I was doing bad the whole game as I have had several deaths and only a few kills, although I am a support I thought I could do more, and I didn't really help my team much in my opinion. I felt like I could have done a lot better. Then my team loses pretty badly and I get an S rating and a chest for getting one or something. Can someone explain what this really means and if it is impressive or something like that? I feel like I did bad but I think an S rank is good as a rating..
Thanks in advance :)