Our analysis on the performance of 473 DFAs on fulminic acid demonstrates that the topperforming functionals for one property typically do not repeat strong performances for other properties. Moreover, the rung of a functional on the DFT ladder is poorly correlated with performance ranking. Overall winners for the HCNO challenge are not evident by inspection, so These findings are contrary to many of the recommendations of DFT benchmarking studies. A complete ranking of all DFAs from top to bottom is included in the SI (Table ).