Empirical duration–energy relations for TESS flares in other MS eruptive stars and RS CVn systems. The two samples are displayed in separate full-width halves of the figure. Individual flare measurements are color coded by effective temperature. Red lines show the fitted relations in the log (Duration [min])– ﹩\mathrm{log}\left({E}_{\,{\rm{flare}}\,}\right.﹩ [erg]) plane, and the shaded regions show the 1σ and 3σ scatter ranges. The fitted slopes and Spearman statistics are listed in each panel.