That's what happens when you let your clock run out. It's that simple. Meaning you should have not fought for a draw, you should've won since it was that good. It happens to me all of the time, but I can't afford to let it happen again. I believe I had a blitz game today that you could check. I had a King and a pawn left on the board with my opponent clock running out and it said I won, that's when I found out what blitz insufficient material meant.
insufficient material draw on time out?
Thanks for the reply but I still don't get it. I did not fight for a draw, regardless, my clock ran out so he should've won, it's THAT simple to me. Given more time there was sufficient material on the board for a win so why would it say draw due to insufficient material when my clock ran out rather than give him the win??

I had a knight and 2 pawns left on the board and was about to promote a pawn when I ran out of time. My opponent was left with only his king. Rather than him winning the game on time, the game was called a draw due to insufficient material. Can someone please explain