So gambling games require luck to win, that is what we should know. But many people lose their money because they don't consider about the luck in gambling. In sport, the situation can change anytime from the weak team into a strong team that beat the opponent team.
The weak team can change the situation when they get a right momentum that can be called as their luck to beat the opponent team. If the weak team can change the situation and win, those people who choose the strong team may lose their money because they choose the strong team as their bet. All of that is because luck come to the weak team.
Not only that, but also only 1/2 over on cricket can change a lot. For example, 2 overs need 48 runs while their average run is 10 runs per over. In this situation, they are almost in lose as they require 24 runs per over. But if a play can make 36 runs on the first over, then it is not impossible to make 12 on another or something like that. And the same thing may happen for losing a wicket while they need a small run rate and have a good number of wickets. But they may lose several wickets on the same over, as a result, they may lose the favor.
Yes, cricket is called the game of uncertainty and in cricket, it is not possible to say which team will actually win with one over remaining. I still remember the final of the T20 World Cup between England and West Indies where West Indies probably needed 22 runs in the last over to win but a West Indies cricketer hit four consecutive sixes in the last over of England to ensure West Indies' victory even though England had the possibility of winning the entire match.
Let me tell you one more thing, suppose five runs are needed in an over but there is only 1 wicket in hand at that time if the batsman hits a 6 then those who are batting will win and if the bowler can take a wicket in one ball then the bowler will win here but there is no way to say that any specific team will win. It may be that the first five balls are dots but the batsman hits a six in the last ball or it may be that where 5 runs are needed, the batsman gives away a wicket in the first ball of the last over. In other words, anything can happen in cricket.