Nobody hates like a Greek neighbour does, to paraphrase Simon Hornblower. But did this reflect a genuine inimical attitude, or are there more layers to commemorative practices? An analysis of the neighbourly commemorative practices reveals a different reality. Looking at dedications, festivals and literary sources provides a more nuanced insight. Rather than a preference for Panhellenic arenas to propagate a warring rivalry to the largest audience, local venues and spaces were preferred. The thinking behind this localised commemoration are the intentions to strengthen local cohesion vis-à-vis a known ‘other’, in this case the neighbouring polity. Dedications at sanctuaries like Olympia or Delphi were inspired by a desire to proclaim credentials for leadership over all of Greece, rather than stress the localised interactions. Often these were made with or in relation to the Spartans, meaning these sanctuaries provided a different audience for other goals. This becomes clearest by looking at a local sanctuary, the Amphiareion at Oropos. Here both polities aimed to promote their ownership by mostly targeting local audiences. This example demonstrates the potential of contested sanctuaries for understanding local rivalries and commemorative practices and how they acted as mirrors for neighbourly relations.