You really think it would be fair to give you a win when all you have left is a lone King ?! I certainly do not .
WHY draw?
holzhaus, I looked at your game and you're correct about how many chances he had to checkmate you - think about like this - you were dead lost but you were able to save a half point.
I thought i won the game (because the time of my opponent expired), but instead of that the game ended by DRAW!
You think you should have been awarded the win when you just had your king left? If you had, say, a pawn, or a rook, or some sufficient material to checkmate, and your opponent ran out of time, then you would have won. However, you had no way to defeat your opponent (having a lone king) so if wouldn't be fair to give you the win. Your opponent couldn't have scored a win either, since they ran out of time, while failing to checkmate you. So, the only other possible outcome? The game is a draw. 
Titles do not mean much. There are untitled players who play extremely strong chess.
I do know how to mate (blindfolded) with Bishop and Knight, though...
But you clearly lack skill at the tricky lone king mate.
I thought its a game "running out the clock", but obviously i have been mistaken.
On this site you need KP to run your opponent out of time. (KN and KB and KNN not enough even if there is a possibiity of a helpmate http://blog.chess.com/webmaster/live-chess-gets-some-love)
OTB not allowed any time, if your opponent knows the rules.
http://www.fide.com/component/handbook/?id=125&view=article
APPENDICES A. Rapidplay
D.1 Where games are played as in Article 10, a player may claim a draw when he has less than two minutes left on his clock and before his flag falls. This concludes the game.
He may claim on the basis:
a) that his opponent cannot win by normal means, and/or
b) that his opponent has been making no effort to win by normal means.
Looks like your opponent ran out of time but you did not have enough material to checkmate, so it's a draw. The rules above do not include all the speed chess rules.
ok, i didnt know this rule. SORRY!
nevertheless i wish this rule can be changed.
My opponent threw away A LOT OF changes to make me checkmate. He was not able to finish the game early, although he had an BIG advantage. Why he get 0,5 points, although it is a game "running out the clock"? its not fair.