Maybe will work for some sites, but for sports bet will be better do own research and count most of all bets and see how much bets was won and lost and how much money was lost or win, and after try to do own strategy.
Having that research wont assure us winnings because it will be depending on th team whos involved,but it can give help for some reason.what we need to do is alot amount for betting so whenever the losing streak goes then you can easily go home and try chance the next time