Fractional distance error compared to the residuals of stellar parameters, and the distribution of fractional distance error. The left three panels show the fractional distance error vs. the residuals of T_eff, log ɡ, and [Fe/H], color-coded by the labeled values from ASPCAP. The last panel shows the distribution of fractional distance error, with a median of 3.7% (red dashed line) and a standard deviation of 8.2% (black dash-dotted line).