Top eleven is the worst game ever...

[Tactician]

So far, from what I have experienced, I can tell you that yes the game may be unfair. Some methods used in this game are not appropriate. I suspect that there is a percentage efficiency that is applied to a particular team for a certain period (which is not limited, that is, it may be half a match, a full match, 1 day, 15 days or even more than a season). This is probably why, despite using decent tactics, some high quality teams perform badly for a certain period. You call these troll results; they are not. It is the efficiency of your team that is probably the problem. For example, a 5 star team may act like a 3 star team if the percentage efficiency is set to 60%.

This effect may occur randomly or occur according to other things done in the game. It may well be also done deliberately by specific selection.