The problem of the research lies in the fact that the various conditions faced by track and field athletes demand that the athlete exert maximum physical abilities and tactical knowledge. This requires the athlete to organize and evaluate their thoughts, actions, and emotions. Low self-efficacy significantly affects performance, diminishing the athlete's sense of ability to progress and confront fears, which consequently affects motivation and behavior during competitions. Therefore, the research aimed to measure self-efficacy and investigate its relationship with the level of ambition among track and field athletes under 20 years.