My greatest chess was victory was my first win against my father ,who taught me the rules of chess,and a little strategy just enough NOT to beat him lol.
your greatest victories

One of my great moral victories in chess was a victory in a long clock game versus the guy in High School who had been best since freshman year. He'd been playing USCF tournaments since grade school while I had no idea of such things.
When we were both mid-summer before the senior year we played that game and he never played me again. I guess he wasn't happy to "lose his crown." It wasn't much of a game for a couple USCF members (I was one for a year by then) but it was still memorable.

That is a satisfying victory,not only did you beat the guy,you burst the bubble surrounding his world.I hope your pleased with yourself lol.

id have to say my chess club teacher. We drawed here and there I I do remeber beating him once or twice. Man he was good
one of my personal favorites, myself versus 8 people ranging from 50 above me to mabye 100 below me... A good win.

I beat Claude Bloodgood in a postal chess game. He published a chess book and was rated over 2000. Also, he was in prison-they say he murdered his mother, but I don't know if it is true. He was thoughtful and gracious in defeat. May he rest in peace (he died a year after our game.) Who knows how things happen in this life-I think he is in a positive state in the afterlife.

I beat Claude Bloodgood in a postal chess game. He published a chess book and was rated over 2000. Also, he was in prison-they say he murdered his mother, but I don't know if it is true. He was thoughtful and gracious in defeat. May he rest in peace (he died a year after our game.) Who knows how things happen in this life-I think he is in a positive state in the afterlife.
Bloodgood got his USCF up to 2700. Of course he wasn't that strong. Most say about expert strength. He got that sky high rating by being best in a limited pool of players (VaPen) and manipulating the rating system.
http://en.wikipedia.org/wiki/Claude_Bloodgood
Norman Whitaker was another chess playing jail bird but much stronger. An IM and at one time one of the better players in the US.

My best sporting victory was my third boxing contest,I narrowly lost the first two, giving a good account of myself, but the satisfaction of the referee holding my gloved hand in the air was priceless. I went on to win and lose a lot more.There was still great satisfaction in winning and maybe sound strange but a little satisfaction in losing also because you got too the end of the contest.
Post your best victories ,online or otb chess or anything else worth telling about, whichever is most memorable, whenever it was,whatever the game.