For example, let’s say one team starts off slow and falls behind early, but then they suddenly make a strong comeback. The game becomes close, and at that point the betting line gives you pretty good value if you pick them to win.
Would you place your bet on that team just because they have the momentum on their side, or do you think it’s just an illusion and not really a factor in the outcome?
Sometimes I do that, sometimes it works but sometimes it's just an illusion because there isn't enough time for that strong team to turn the situation around.
Sports betting is the same in all circumstances, sometimes we can win even by betting on a weak team and also lose on a strong team with very low odds.
So there is nothing certain in gambling, because we are only predicting and hoping that it is correct in order to make a profit.