I just had a game against HHH, the game finished and then 2 days later a new one appeared against HHH again. Is it normal that you get a game against a player multiple times in such a short period of time, or is it pretty rare and i just got unlucky to get HHH twice?

I think it is rare to get to play the same player twice but it does happen. HHH plays very fast and so there are few people that he has not played. You had probably played against most of the other people the generator might had paired you up against and so you got HHH again.

It won't match you against anyone you faced in your last 3 completed games. You had three games finish after your HHH game, so you became eligible to play him again. For more details, see http://wiki.warlight.net/index.php/How_Ladder_Games_are_Created

Okay thanks

I got exactly that, smashed by HHH twice in quick succesion ... a very fun experience :/

Well i didnt get smashed the first game, but the second game i did