Аннотация
Success and failure in competitive activities are significant situations that affect the psychological state of athletes. The aim of the scientific research was to study the relationship between success and failure with the psychological states and behavior of biathlon athletes. The study involved 20 active biathlete athletes aged from 18 to 20 years, 10 boys and 10 girls, with their skill levels from the 1st category to masters of sports. The results were analyzed taking into account gender differences. The results of the study have revealed both gender differences and individual differences. The obtained data can be used as recommendations for coaches, athletes and sports psychologists.