When it comes to sport betting doing a good research is very important, those that always study a game very well and conduct a good research about the game and the players always end up winning more than those that don't conduct research, a friend of mine said he usually do not conduct research before playing a game because it never works for him, conducting a research don't mean you will always win the game you predicted but you have a higher chance of winning when you research.
Doing research will help you analyze historical data reveals pattern that can guide your predictions, there are history that will help you make good prediction, Research helps you rely on facts rather than emotions.
Betting without research means you are gambling blindly.
How can one even bet without doing a research, well to me I see betting like someone trying to buy a coin, I must makes sure that I do my research about the club I'm putting my money into especially if I see a new team I have not seen before. Every season, we used to see a new phase of clubs from championship division to the domestics league, seeing them for the first time means that I really need to study how they were able to win that place and get to where they are in that time.
Most often, you notice that when a team is move from championship to domestic league, they tend to perform poor as if they bribe their way out of their and mostly end up in relegation zone, they don't do much like teams that have been there. However, there is a trick about some of this teams. The one you don't even expect anything from turn out to be a beast, this is why you need to investigate some teams before you bet the opposite on them.