Abstarct: In sports competitions, it is thought that teams that play at home and as hosts have an advantage.The advantage of playing at home is an important factor that we can consider in sports competitions.Because it allows us to know how hosting and playing at home or abroad affect the results of sports competitions. Hosting opportunity means that the host team has a 50% chance of winning the match .it also means that if she plays with the same team away from home, she is more than 50% likely to lose the game. The advantage of home gaming is a global phenomenon, but it varies from country to country . the characteristics of any countrys football are vital component that can directly affect indoor sports competitions. Therefore , it is necessary to conduct research in different countries and leagues to be able to gradually address the underlying factors of this study is to analyze the importance of home games on the final outcome of games. This study examines the available statistics to see if playing at home can lead to better results on the field.This research, in addition to providing us with valuable information. Helps to analyze the frequency of repetition of subsequent results .slow and help us develop reality baxsed strategies for better results by teams. The present study is a descxriptive analytical and retrospective study and the researcher tries to understand the effect of playing at home on better results by examining the results of Iranian football, volleyball and basketball leagues and examines the possible factors of the result Data were used from the library study method.