Quick ansewer: If you played against him, right click(or just click not sure) on his name in the scoreboard and select "view profile". If he's on your friend's list or you know his name+code, add him as friend and right click and select the same, and if you only know them by name and haven't played a match recently against them or know them, I can redirect you to a similar thread and the wonderful reply from Xern(Post #2) here: http://www.starcraft2forum.org/forums/showthread.php?p=386657#post386657 Edit: Not as quick an answer, but oh well