Quote from the FAQ:

Although I had finished a game, my BKR did not change! Is that an error?

No, this is not an error. There are several situations which can be a reason of that:

* Both players did not perform at least two moves. It can happen when one player loses the game by a timeout at the very beginning.

I 'm very sure.

Edit:

Also, Paying members can delete games that have just 2 moves played.