The Martingale system is based on negative progression where the player is to double the wager after every loss. The idea is that the next win after a loss will recover the previous losses and grant a profit that was equal to the original bet.
Here is a betting sequence using the Martingale system: If a player bets 1 unit and wins then they continue to bet 1. But a loss would require the next wager to be 2; and 4 if another loss follows. The basic premise of the Martingale betting system is for the player to recover back to the original number as quickly as possible.
One critique of the Martingale betting system is that it can drain a player’s bank roll because the losses take a larger amount during the recovery process than winnings. In this respect the Martingale system is more commonly advocated by players with larger bankrolls.
Application of this betting theory is best used on even bets. Martingale roulette tactics involve wagers on bets such as red/black, or even/odd. Many find the gambling strategy to work and Martingale roulette players have found the system to bring success.