The purpose of this study was to examine the variability of diverse aspects of freestyle race performance in swimmers with intellectual disability (ID). Sixteen competitors (8 ID and 8 without ID) swam three 200-m freestyle races in competition over a 4 month period. Both groups had similar training background and competitive experience. ID swimmers showed a greater between race variability than the control group in end result (9.9% vs. 6.3% for WID) and mid-pool swimming speed. They also showed a greater variation in the relationship between change in Stroke Rate and change in swimming speed. ID swimmers swam slower and had not only a shorter Stroke Length but also lower Stroke Rate.
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