A search for a high-mass resonance decaying to WW is performed in the final states using collision data collected at sqrt{s}=13 TeV corresponding to an integrated luminosity of 36.1fb^{-1} by the ATLAS detector at the Large Hadron Collider. Different hypotheses are tested, including heavy Higgs with a narrow width approximation and a large width assumption. Three orthogonal event categories are defined for the search: one ggF quasi-inclusive
