View Past Champ Grades in Match History

I'm probably not the only one, but occasionally I like to look back through my match history and see how I did in various games on champions in the past. Unfortunately, right now it's kind of arbitrary in that you can't see the grade you received for the game. I think it would be a nice touch to be able to see the grade a player received after the fact, as sometimes people instantly start a new game if they didn't get anything good, but then are curious later, or even have crashes or freezes and are unable to see their final grade because they have to restart their client.

Add it to the old client if it wouldn't be too much work, but I would really like to see this as a feature in the new client!