How Does MMR work exactly?
Recently, I've been playing alot of katarina in solo/duo queue, and i almost never feed and generally have a good kda and kill participation. I would say i do very well in my games, but i lose some of them because of teammates, throwing, and whatnot. Whenever i do win i would gain 17-18(usually 17) and it has been that way for a few days, but i used to get around 20's. So how can i get more lp per game?