This is something that interests me I also can ' t really commit to many matches , so ranking up is painfully slow 200 wins in 20 months . I think the main reason for that is simply that every time you sit down to play it ' s almost like starting from scratch , you forget lots of things you wouldn ' t forget if you were playing several matches per day . However , what others have said about rank decay not being a thing I am not 100 % sure there is not rank decay going on all the time . I feel like you CAN maintain your rank just by playing a couple of times a month , but that ongoing rank decay DOES happen not just once a month and it DOES slow down your progress you may need more wins to actually rank up . Can ' t prove it , but since rank HAS to decay for the system to work inactive players can ' t just sit on their Elo points or whatever , it makes sense that it is happening on a more regular basis than just once a month when you would actually lose your visible rank since visible rank doesn ' t DIRECTLY correlate with your invisible MMR .