Even though when you bet on sports you have hundreds of different combinations to play like goals, corners, fouls, players and a lot of other bets, I think you can still make profit only from betting on the winning team. But you have a big disadvantage here and that because you cannot bet on every match since there will be times when you will find matches like Atletico-Juventus last night and here the right bet would have been on goals or corners, while many people have probably bet on Juventus. But still, if you are careful enough and choose the right matches and know how to analyze them you can make profit.