when it comes to luck because no matter the strategy someone has and no matter the stats been carried out winning is not sure, it has to be a luck maybe you don't believe in... but I do believe this. though strategy and stats will help a gambler stay on track I mean make someone select what may likely be the outcome of a game most atimes.
Yes, I understand what you're saying, however , for me in sports games some events occur that cannot be predicted, I call those events an extraordinary event and others call it luck , but not all the time the results are due to luck, but to certain points that are studied based on the characteristics of the athletes , strategies , and Conditions that must be met. Winning is not certain, but it is safer to win by making sports bets than in a Casino.