  We derive the leading order matching of the quark generated polarized
transverse momentum dependent (TMD) distributions onto the collinear functions
at small values of the transverse distance. Starting from the very definition
of the TMD operator and performing the light-cone operator product expansion up
to twist-3 order, we evaluate each distribution directly in position space. We
primarily consider the cases of Sivers, Boer-Mulders and worm-gear functions.
The effects of the TMD process dependence on the matching are explicitly shown.
We also discuss the moments of TMD distributions which can be relevant for
lattice calculations.
