Tournament in Vegas, just a $65 buy-in, down to 4 players. I was sitting on about 70% of the chips, with the other 3 sitting on about 10% each. I'm in the big blind, and the 3 players before go all in. My mindset was to win money that day, so the hardest play of my life was folding ace/ace. With 3 players going all in before me i put someone on another ace, leaving me to a lone ace or a impossible flush or straight draw. the 3 players turned over their cards, showing KQ suited, A/K Suited and 9/9. The 9's trip up on the flop and another ace never shows, making me the loser in the hand. So with that 1 fold, i ended up 70% vs. 30% heads up, and moved my winnings up a guarenteed $1500, ended up winning the whole tournament and taking about $4000 i beleive.