Comparison of the measured magnitudes for GJ 1284, GJ 898, and GJ 897 and the calculated magnitude for the individual components of the two binary systems against a set of isochrones from four different PMS evolutionary models: BHAC15 (top left), PARSEC (top right), MIST (bottom left), and SPOTS (bottom right). We also include the isomasses (dashed lines) for each of the models for initial mass values ranging from 0.7 to 0.2 M_⊙.