  We present heavy-flavor production in association with one jet in hadronic
collisions matched to parton shower Monte Carlo predictions at next-to-leading
order QCD with account of top-quark decays and spin correlations. We use the
POWHEGBOX for the interface to the parton shower programs PYTHIA or HERWIG.
Phenomenological studies for the LHC and the Tevatron are presented with
particular emphasis on the inclusion of spin-correlation effects in top decay
and the impact of the parton shower on the top-quark charge asymmetries. As a
novel application of the present calculation the measurement of the top-quark
mass is discussed.
