Evolutionary tracks of Bressan et al. (2012) with four tracks for different metallicities for the 500 Myr isochrone. Our dynamical mass estimates are depicted by the blue triangular and diamond markers and the earlier photometric estimates from Daemgen et al. (2007) by the red crosses (the arm length does not represent an error estimate for the cross). Solar metallicity is shown by the dashed line and the average metallicity of the Ursa-Major moving group is somewhere between the dashed-dotted and the solid line.