One of the biggest positives to using the Martingale strategy is that if you do happen to lose more often than not, just a single win will wipe out all the debt that you’ve incurred. If you happen to win at the very end of which your bankroll allows, then you’ll walk away with a fairly substantial amount. The cons to the Martingale are that it chews through your bankroll pretty quickly, and that there’s no guarantee of winning.