Facebook used to (or still does?) have games on it. When Tetris was added, I climbed to the #1 rank in the world in one of the modes, I forget which. Didn't last long though
Top 150 ranked in world on Company of Heroes 1v1 a long time ago lol. Got to play against some of the #1's - one of them left to join the South Korean military I heard. Got stomped but was fun.
I was pretty damn good at C&C Generals: Zero Hour back in the day. Damn I wish they remastered that game.
Was ranked on global leaderboards in Dota for a brief moment, too. Top 1%, but never close to the 0.1%.
My favorite moment in gaming was playing a sniper in Red Orchestra in a large 64 player game. Huge map. All game I'm sniping people left and right. Not dying once. Meanwhile throughout the game, like 30 minutes, the enemy sniper is equally decimating my team's ranks. I was hunting for him the entire game to no avail. Then, while prone I crest this ridgeline to scout a valley below and as I pan my scope to look all the way down toward the other side of my ridgeline, I see the other sniper lock with me at Exactly. The Same. Time.
We both fire.
And since Red Orchestra actually tries to simulate ballistics, we both hit each other and die.