The concept of a progressive betting strategy is simple: it is all about adjusting the size of your bet depending on whether you won or lost the previous one. There are exciting progressive betting methods in sports betting, but this is usually used in casino games such as roulette, blackjack, or even slots. However, the concept of a progressive betting technique can be applied to almost anything that involves wagering. There are two types of progression systems: positive and negative, but what is the difference between the two?