Just about every gambler I know has used the Martingale system when placing bets. If you don’t know what the Martingale is, I give you a quick overview in the first section. Some gamblers also track past results to try to สูตรจาวิสของแท้ predict future results. They believe that they can make profitable bets based on what’s happened in the past. This is actually true in a few areas, like poker and sports betting, but it’s a waste of time where most gamblers use it.