Very difficult in gambling, implementing a method that works can sound easy but when you come up with the strategy and utilize it, you will realize that it doesn't work like that if luck is not present. Although in sports betting, one can have a working strategy but don't be 100% confidence because luck is still needed too but not as much as in casino games that mostly rely on luck.
In sports betting, strategy and match analysis are 90 percent for winning and 10 percent for luck. For example, if you analyze the match between Barcelona and Atletico Madrid in club football, you will definitely be able to choose a winning team. By analyzing which stadium is being played and which team will have the support of the audience, it will be easier for you to predict the winning team. I can say that Barcelona has a higher chance of winning here. There are even some other cases where strategies are effective. But casino betting mostly depends on luck. Maybe strategy plays a small role.
Yea, it's so possible to predict the team that's going to win with about 80% chance and even the bookies would have the same prediction but as the game goes live and the poor performing team starts to win against the best team, the bookies starts to drop their odd from high to low. While making prediction, always pray for luck too because you could be wrong about the game you were so confident about.