This research was carried out to determine the social-emotional learning skill levels of the athletes who were ranked in the school sports star category in the 2021-2022 academic year, according to their morning-evening situations. The universe of the research consisted of 588 athletes aged 13-15, who ranked in different sports branches in school sports star category competitions, and the sample consisted of 415 athletes, 203 men (48.9%) and 212 women (51.1%) who voluntarily participated in the research. “Personal Information Form”, “Morningness-Eveningness Scale” and “Social Emotional Learning Scale” were used as data collection tool. While there was no significant result between the social-emotional learning levels of female athletes according to their morning-evening status (p>0.05), there was a significant difference between male athletes' social-emotional learning levels according to their morning-evening status (p<0.05). There was no significant difference in social-emotional learning skills between team and individual athletes according to their morning-evening status (p>0.05). As a result of the research, it was concluded that the social-emotional learning skills levels of male athletes with morning sickness were positively affected. It can be said that training programs should be arranged according to morning and evening conditions in order to increase the social emotional learning and skill development performance of the athletes as well as their psychological and physiological performance.