  An overview of recent measurements of differential top quark pair production
cross sections performed by the CMS experiment at the LHC is presented.
Measurements at different proton-proton center-of-mass energies are available
using the dilepton, lepton+jets, and all-jets decay channels of the top quark.
In addition to the measurements of parton-level top quarks, many measurements
at particle level in an experimental accessible phase space are now available.
For these results the dependence on theoretical extrapolations is reduced. A
common observation of all measurements is a softer transverse momentum of the
top quark than predicted by state of the art standard model calculations.
However, new calculations with NNLO QCD and NLO electro-weak precision show an
improved agreement.
