Summary of the results obtained with our algorithm. Top left: completeness distribution (see text for definition) for the 20K mocks (black dot-dashed line) and for the 20K+photo-zs mock groups (red solid line). Top right: fraction of interlopers as a function of normalized group-centric distance for the 20K/20K+photo-zs mock groups (black stars and red triangles, respectively). Orange squares refer to the fraction of interlopers, , for real data, as calibrated on the mocks, see text for details. Bottom left: for different mocks as indicated on x-axis, the median distance to the central galaxy of the VW center (violet triangles) and the median center (cyan stars). Bottom right: distribution of the distance of the VW center to the central galaxy position for the 20K mocks (black dot-dashed line) and for the 20K+photo-zs mocks (red solid line).