So if you playR$1/$2 live cash games and buy in for 100bb, orR$200, then you should have a bankroll of at leastR$4,000. And if you playR$25NL on online and buy-in for 100bb then you should have a bankroll of at leastR$500. This rule ensures that you never buy-in at the table for more than 5% of your bankroll.