The Martingale System requires that players increase their bet size after every loss. With Martingale you begin with a small initial bet. Then, you continue betting the same amount until you lose your bet. When you lose your bet, you will double your bet size. You will continue doubling your bet on every loss, until you win, then you come out slightly ahead. However, the problems with the Martingale system are that you will quickly reach the maximum bet limit per table, and nobody has an unlimited bankroll. Plus, there is no guarantee how long your losing streak will continue.