Luck is a big factor that has the most influence on sports betting and luck is something else outside of our analysis and thinking because what we judge is that they have low ranked teams that popular teams will easily beat but the fact is not like that and Argentina has defeated by Saudi Arabia. People around me underestimated the performance of team saudi arabia after their defeat in the first half but they didn't give up and luck was on their side until they won that match, luck cannot be predicted and analyzed so it is a big risk for sports betting.