Nevertheless, winning can be determined on lucks. Some gamblers actually think winning is of that indebt expectations where much of resources such as emotions, time of analysing the games and the huge amount of fund is invested. That's why at most cases some gamblers feel disappointed where they underrates underdogs and stakes on favourites or higher influential team to win but at the end of the games usually ends not as expected.
Expectations is one of the factors that influences the investment of emotions, some gamblers place too much expectations on their bets and that leads them to investing not just resources but their emotions too which international informs their reactions. Some reactions are such that ruine their mind and may cause them harm in some extreme cases. The analysis and all of time it takes to get the gambler to the point they place a stake on the game , this put together leads to all of the disappointment they feel.