The purpose of the study is to investigate if there is a difference between the performance results of the gymnasts receiving and not receiving modern dance education, which is applied to the rhythmic gymnasts in the category of junior. The experimental group included 10 rhythmic gymnasts competing in the category of junior in Antalyaspor Club with a mean age of 8.50 ±1, a mean height of 1.16±0.4, and a mean weight of 22.7±3.3. The Control Group consisted of 10 rhythmic gymnasts competing in the category of junior in Antalyaspor Club with a mean age of 8.10±1.2, mean height of 1.19±0.3, and with a mean weight of 21.8±2.4. Before the study, the gymnasts and their parents were informed about the aim, title and content of the study, and they were also asked for permission. The participants in this study consisted of 20 licensed rhythmic gymnasts competing in the category of junior in Antalyaspor Club. The gymnasts were divided into two groups: Experimental Group and Control Group. All of the modern dance education applied to 10 gymnasts in the Experimental Group was given in Rhythmic Gym Gymnastics School in Antalya city center. The modern dance education was regularly given by a professional choreograph an hour twice a week, in a total of 10 weeks, 20 days and 20 hours. The arithmetic average and the descriptive statistics of all the data found as a result of the measurements were calculated, and the statistical analysis of the data was made using Independent T-Test in SPSS, and a p-value < 0.05 was considered to be significant. According to the findings, it has been found that modern dance education has a positive effect on the contest results. To sum up, it has been concluded that there is a statistically positive and significant correlation between the success of rhythmic gymnasts receiving and not receiving modern dance education. It has been proved that the performance success of the rhythmic gymnasts receiving modern dance education has been increasing. Thus, including modern dance education in rhythmic gymnastics training is thought to affect the gymnasts' success positively.