I was in 3rd place ina ultimatebet tournament, and the leader was @ my table, i had a good hand (8,9 suitedhearts) and he had a good hand (A,2 suited hearts) So i'm betting slow right? and the dude kept calling me and off the flop was a 10 J Q hearts -I had the nut, and i was like ok dude, so on 4th street(4clubs) i bet larger, and still did he call me. I didn't want to go all in on 4th street and scarem away from a serious chunk and potentially more. So on river i bet all in and he called there was a K hearts on river -he made the royal flush something i had never seen on a real table in person or at a casino or online, and it had beaten my striaght flush and taken me out of the tournament (there was 18 people left) he won the tournament too.
That i'd say is a pretty bad beat. That was my worst deal ever. LOL oh well