In order to achieve a high result in the course of sports training, the athlete’s body needs to constantly adapt to larger and larger training loads. Such trainings cause constant changes in the composition and properties of the biological system of the body. The relevance of the study is due to the need to use genetic testing both in sports selection and in sports training of athletes of different disciplines. The purpose of the study is to determine the genotypes that are associated with an increase in the performance and health of an athlete.