Comparison of StarHorse results with the Gaia DR2-only-derived distances of Bailer-Jones et al. (2018). Top left and bottom panels: median relative differences with respect to our results. Top left panel: median difference as a function of distance. The red density distribution and the running median correspond to the flag-cleaned results, while the grey running median corresponds to the full converged sample. Bottom panels: dependence on sky position for the full sample (left) and filtering on the SH_OUTFLAG (right). Top right: comparison of statistical uncertainties. See Sect. 6.1 for details.