Of all the so-called well-known sports betting systems, the Paroli System is said to be the exact opposite of Martingale.Well, the real difference lies on the notion that on Paroli, you start with one bet and raise the bet whenever you win as opposed to you lose. The main advantage of this one of the very popular sports betting systems is that you simply do not need a large bankroll.The system lets the profit run and cut short the losses.