How can you tell if a challenge is rated or not...

Is there a way of telling if a challenge game is rated or not?
Every so often a game pops up in my inbox from someone I don't know and has a provisional rating. I'm tempted to give them a game but don't want to lose loads of points - they could be the next Bobby Fischer for all I know!
I can't see from the game details whether it is rated or not, so often I bin it. Am I missing something?

Go to "My Games" then click on info for that game

Thanks!