A track pad is disclosed for use in a track system of a tracked machine. The track system includes a plurality of track guiding rollers having annular engagement surfaces. The track pad includes a pad body having a wear surface, and a rail surface opposite the wear surface adapted for complementary positioning with at least one track guiding roller. The rail surface includes a profile that is convex or concave. The profile is adapted to complement the at least one track guiding roller, which presents a profile that is the other of convex or concave.