In this article, we have presented a new motor classification of patients with spinal cord injuries. This system of classification provides statistically discrete subdivisions. The patients in each of the subdivisions of the classification can be mathematically summarized with numerical indices which then may be accurately analyzed statistically. This allows the clinical researcher in spinal cord injuries to evaluate current treatments and assess the potential of new treatments and assess the potential of new treatment regimes. In addition, tables of MIi and recovery rates have been presented to aid in the correct classification of new patients and in the prediction of their present chances of motor recovery. Last, we have introduced a standardized motor examination, based on past experience, that will aid in the direct comparison of future results for any spinal cord treatment regimes.