The aim of this work was to determine the body composition profile of children and young roller skaters. 516 athletes (361 males and 155 females) between the ages of 5 and 21 years old, who belong to official clubs in Colombia and Venezuela, were evaluated longitudinally. The anthropometric variables were taken according to ISAK, using the Holtain© caliper for the skin folds (triceps, anterior thigh and medial leg) and the Sanny© tape for the perimeters (relaxed arm, medial thigh and leg). The treatment for the estimation of the percentage of body fat (%F) and muscle mass (%MM) was performed under the protocol of the GREC and processed by means of SPSS 24.0. The results point to the existence of significant differences (p<0.05) between sexes for %F and %MM. For the development of the profile the methodology of smoothed curves was used with the application of the software LMS Chart Maker© and to generate cut points for the percentiles 3, 10, 75, 90 and 97. It is concluded, that the classification for the proposed body composition, without trying to be a unique norm to establish the typification of the status of the body composition of a skater, allows to distinguish and to categorize with rigor and objecti-vity, the characteristics of the body composition of the skaters independently of the age and competitive level. This work is recommended as a starting point for future studies in larger populations with established probability sampling and ethnicity.