The aim of this paper is to determine differences in anthropometric characteristics between successful and less successful swimmers 10-12 years old. On 72 swimmers aged 10-12 years, divided into three subgroups, based on the swimming speed of 100m freestyle, testing was performed in the some anthropometric variables. Statistical analyses showed differences in the values of body height, leg length and arm span. Study results confirm the importance of anthropological characteristics of tested swimmers, and indicate that during the selection of swimmers, attention should be paid to height, leg length and arm span. These features have great influence on results of swimming for the given age.
