Two-Point Distortion Theorems for Harmonic Mappings

We establish two-point distortion theorems for sense-preserving planar harmonic mappings $$f=h+\overline{g}$$ in the unit disk $${\mathbb D}$$ which satisfy versions of univalence criteria due to Becker and Nehari. In addition, we also find cases when h is a normalized convex function and, more generally, $$h({\mathbb D})$$ c-linearly connected domain.