Most of us probably don’t believe that it’s possible to be profitable in sports betting...
It is in sports betting that the winnings are more obvious than in the casino and depend on how much you are an expert in any sport. But there are still too few players who actually make a profit in relation to the losers.
This is the reason why a gambler need to gamble in games that he or she is familiar with so that they don't get much losses. However, Based on my perspectives it's better to gamble on games that you know very well then games you don't know. Although sometimes gamblers normally get lucky on some random games but it's very rare.