There are fixed percentages of people who could win against the house in a day, because all of the gambling sites never let anyone to beat them in a way where it looks like they don't have any control on the games. Gambling site's game are all programmed, meaning, there is a code that would generate the patterns and tactics to beat the players in a way where the house would always make the bigger profits even there are people who are winning.

In short, the number of people who are winning in the gambling site everyday is smaller than the amount of people losing everyday in gambling, that is the sad story behind it. It might be smaller, but it ignites hopes to those gamblers who is really persistent to make money out of it.