This may be because your rating in games this year is affected by your performance.

I doubt it my average team grade is an A- and I'm averaging 12 points and 6 assist a game. There is some other scenarios I've been thinking about. I have complained to the GM about a player I don't like and the fact that I hate losing maybe it senses that I'm unhappy. If that's the case I wish they would just show the drop in rating with the red arrow like everyone else's that way I know I can get those points back till then I will continue to believe its just a glitch.