&Extragalactic Astronomy BRussian Kspiral galaxies, Mark III catalogue, RFGC catalogue// The distances and peculiar velocities for 3530 spiral galaxies from the Mark III catalog and the Disco sample from the RFGC catalog are computed with the use of the unified Tally—Fisher relation. We compare the unified system distances with the distances in Mark III and the distances of the Disco galaxies obtained earlier.