If you want just have fun by betting on your favorite sport and team, you need to know as much as you can about the sport, team, players, events etc...

    Now, and I suppose it's this, if you want place bet to make some money, you absolutely need to do two things :

    First, you have to bet with the odds and the odds only. Of course more you have info about your bet, better it is but you have to play with statistics and not with intuition.

    Second, you have to follow a system and stick to it. For this you can try to study odds from last seasons before place some real bet. Let's take an example :?

    Let's say you look at the 2009 - 2010 season odds for Boston Celtics and you see that this team won 70% of their match.?

    The next season, if the team looks as strong as the last season, you can believe that it will have some good percentage of wins. So you can bet on all this team match. Again, I don't know about the real stats for Boston. This was just an example.?

    Or you can try your system directly without study the odds from previous season but you need to start slow with small bets to try your system.

    As you discover the sport betting world, you will see there are thousands of potential system. The thing to remember is to play with the odds.