Games where you threw away a win for no good reason

Losing a won game is the worst feeling. You just have to learn from your mistakes and move on.

just about everygame for me even though some of them i still win. but there is never a game where i don't see a move that would give me a completely winning position either during the game or during post mortem analysis

I once drew a game where I was a Knight up and the win was fairly simple. 

I spent the next several months studying endgames to make sure I'd botch an endgame where I was a piece up without compensation again. I still botch endgames occasionally, but usually only in fast time controls. 

So the study was successful in ensuring continued botching, right?

Sorry, I know that it was a typo, but could not resist . Peace ...

Yes, that was a typo. Well done. 

I obviously dropped a word there. I should have said,  "to make sure I'd never botch an endgame....

Well, I was at the same tournament you played. Yeah, I threw a win against a 1900 player. We all made that mistake so dont worry about it. 

This is how a game that I once played against Computer 1 - Easy ended (I was playing black). I was just about to go to bed as soon as I finished the game, so I wasn't really paying attention, and this happened: