Introduction: Human has realized the importance of sport and its effects, especially on young people as the main capital community during his life over continuous centuries. This important issue can be found in words of Holy Prophet of Islam and consequently the Imams whose tradition and expression are the main sources to extract law in Iran, and they have paid especial attention to sport and laws and rules governing it. Iran's constitution has explicitly considered physical education in its article III as a means to achieve the goals of the Islamic Republic of Iran.
Methodology: As current study has extracted the words of jurists and lawyers to analyze and investigate them, it is considered as analytical-religious study. In addition, to provide it, the method of investigating the documents, library studies and taking notes were used.
Results: According to the views of legislators, neither sport nor sport facilities are means to protect different athletes. According to article 1 of the civil liability law, any harmful act that is based on fault brings liability and obligation to compensate material or spiritual rights for one who is guilty, while it is not subject to specific wording in the law. In addition, athletes are obliged to compensate to loss caused in the sport arenas, if it is proven that they was guilty and they have violated the sport laws.
Discussion: According to “no loss” rule in jurisprudence-legal issues, it can be said that this rule is also applied in investigating the sports causing loss in sport arenas and liability of athletes for any injuries and harms that they create in such sports. However, according to Section C, Article 185 of the new Islamic Penal Code. It could be concluded that this dedicated law is based on the general rule of “no loss”. In addition, other cases such as athlete’s satisfaction with possible losses and injuries during the sport operations within the rules of the same sport, the factor of emergency and self-defense in the absence of guarantee and liability of injured athlete were examined in this paper. It could be concluded that violation of any of the error and fault cases mentioned brings civil liability.