  We assess how different ATLAS and CMS searches for supersymmetry in the
$t\bar t + E_T^{\rm miss}$ final state at Run 1 of the LHC constrain scenarios
with a fermionic top partner and a dark matter candidate. We find that the
efficiencies of these searches in all-hadronic, 1-lepton and 2-lepton channels
are quite similar for scalar and fermionic top partners. Therefore, in general,
efficiency maps for stop-neutralino simplified models can also be applied to
fermionic top-partner models, provided the narrow width approximation holds in
the latter. Owing to the much higher production cross-sections of heavy top
quarks as compared to stops, masses up to $m_T\approx 850$ GeV can be excluded
from the Run 1 stop searches. Since the simplified-model results published by
ATLAS and CMS do not extend to such high masses, we provide our own efficiency
maps obtained with CheckMATE and MadAnalysis 5 for these searches. Finally, we
also discuss how generic gluino/squark searches in multi-jet final states
constrain heavy top partner production.
