Part of tournament poker is knowing that you'll lose more often than you'll win, but if you play well, your wins will more than offset the losses. Part of playing well is getting your chips in when the odds are on your side. If you only play when you are 51% to win, you'll win over time, though you won't get far in plenty of tourneys. I was playing a deepstack tourney on Pokerstars today. They slow down the structure so that a full game takes like 10 hours. AFter 4.5 I was kicking ass in 10th place and already in the money. I call a raise with QT, flop comes KJx, I bet, he calls. Turn is an ace, giving me the nut straight, I bet, he raises all-in, I call, he flips a QT. The river, however, was a 9 of diamonds, giving the other guy a stright flush. He took 99.5% of my chips and that was it.