No one is supposed to know the exact outcome of a bet, unless he is involved in the fixing. Experience in match analysis in sports can increase your chances of winning. In this case we don't know the 100% sure result but in some matches we can pick the best swing to win or it is easy to pick. Again analyzing some matches makes it impossible to get results, if both teams are strong. But no matter how experienced you are in betting, there will always be a risk of losing your money.
Challenges as this affects the way players place their bets, due to doubts and self negligence. Most often the public opinion tend to switch some gambler's initial prediction to another one, which could end up being false. However, going with our own choices can be beneficial and painful according to the outcome of the match.
Nobody is sure of the right results. That's the reason for some of the experienced players who get confused of the right prediction.
This is what makes gambling so confusing and difficult to become good at, as you could do the perfect bet and do a great prediction for a match, but no one can really predict what it may happen and suddenly you find yourself losing that bet even when you did everything as you were supposed to do, so someone that was relatively new to gambling will try to chance what they did, when in fact there is no reason to do anything about it.