HR diagram of members in Cha I selected from the literature and the GES data with A_J < 1.2 and T_eff > 3000 K. Temperatures and luminosities have been derived from the GES spectra and the 2MASS photometry for the red dots, and from the literature for the other stars. Isochrones (at 0.5, 1.5, 3.0, 5.0, 10.0, and 20.0 Myr) and tracks (at 0.1, 0.2, 0.3, 0.6, 1.0, 1.8, 2.4, and 3.0 solar masses) from an improved version of the Tognelli et al. (2011, 2012) pre-main sequence evolutionary models are reported with continuous blue and dashed red lines, respectively.