Experience has shown that a bankroll of 100 buy-ins best balances your interests in increasing income and reducing the risk of bankruptcy. Don't play a tournament if you don't have 100 buy-ins for it. Never invest more than 1% of your bankroll in a tournament."Dispersion is a measure that describes the deviation (more precisely, the random deviation) of an indicator.“Translating this to poker tournaments, variance means that things don't always go the way they're supposed to. In some tournaments you will be very lucky. The cards, as if bewitched, will fall only in your favor, and the opponent's chips will only move in your direction.Poker rooms now offer a very wide selection of various tournaments. The time difference between the new tournaments is only a few minutes. But not all tournaments are the same. In addition to the most popular "Freezeout" and "Turbo" formats, pay special attention to "rebuy" tournaments, which are much more expensive than they might seem at first glance, due to the possibility of rebuys (rebuys).