The Paroli system is a form of positive betting progression. Most betting systems focus on increasing the size of your bet every time you lose, but the Paroli system takes a slightly different approach. Some are simple enough for a child to master, while others take a degree in advanced mathematics to fully understand. Some of these strategies have been around for centuries, while new systems seem to pop up every year. Whether you’re a seasoned pro or just a recreational sports bettor, it pays to get familiar with a handful of betting systems.