Optical completeness defined as the ratio of clusters confirmed after running eROMaPPer in scan mode on the cluster coordinates in various catalogs from the literature. At low redshifts, we used the ACO catalog and quantified the completeness for four different redshift tolerances. At high redshifts, we used the SPT, ACT, and Planck catalogs and considered clusters as confirmed when the redshifts agreed within |z_best − z_lit|/(1 + z_lit) < 0.1. We restricted the samples to clusters where the LS are sufficiently deep, that is, z_best < z_vlim. A minimum of five clusters was required per redshift bin.