The lack of anti-doping education in the practice of jurisdictional bodies and arbitration courts is considered as a subjective element influencing the determination of the sportsman’s degree of nonsignificant fault or negligence. After analyzing the decisions of the Court of Arbitration for Sport (CAS), we came to the conclusion that the independent nature of this circumstance, as it does not require a logical link with the athlete’s experience in competitions, remains questionable today. This is partly influenced by the prevalence of anti-doping training as a responsibility of international and national anti-doping organizations. Another reason is the strictness of the WADA World Anti-Doping Code, which requires athletes to exercise a duty of utmost caution, which implies an active position in the study of anti-doping rules.