Differential cross section measurements (as a function of kinematics variables) at the LHC

A status report on the measurements of differential top quark pair \ensuremath{\mathrm{t\bar{t}}} production cross sections performed by the ATLAS and CMS experiments at the LHC is presented. A large number of results at different center of mass energies and in various top quark decay channels are available. This includes the first results at 13\,TeV from CMS. The two definitions of the \ensuremath{\mathrm{t\bar{t}}} system used in these measurements are discussed, namely the parton and the particle level approach. All measurements observe a softer $p_\mathrm{T}(\mathrm{t})$ spectrum than predicted by state of the art standard model calculations. This is also confirmed by measurements at very high $p_\mathrm{T}(\mathrm{t})$ where special techniques are used to reconstruct the boosted top quarks. However, there is a good agreement with the latest NNLO calculation.