Poker tournaments are very different from conventional poker games, and there are very few players who excel at both. But it can be done! There are many reasons for these differences. The most important ones are: The chips change value due to the fact that most tournaments are "percentage payback." Rebuys are available early on. And, many players over adjust their playing strategy because they are aware that after the rebuy period you cannot purchase more chips if you lose a couple of hands.