‘Positive disruption through sport’ is an empirically evolving conceptual framework designed to support hyper-local ‘sport for development and peace’ (SDP) actors and policymakers in the context of tackling contemporary youth violence. In this case, contemporary youth violence refers to the dramatic increase in knife crime and violent street cultures recorded across the UK, and more specifically London. To put this into context, one fatal stabbing occurred every one and half days in the UK in 2019, and 2022 figures show a 10% increase to 49,027 offences. Recent debates at the governmental level warn of the effects of unsafe communities, the fractious nature of youth knife crime threats and the lack of effective policing. As a result, a shift in approach and an innovative intervention model are critical to disrupt knife crime cultures and their broader impacts. Sport has been one mechanism widely advocated by development and social justice sectors to positively disrupt patterns of crime, create spaces of safety and support development and educational activities within fragile hyper-local spaces. This chapter highlights a contemporary example of SDP on the frontlines of violent spaces by those with lived experience and a unique social intimacy with the young and vulnerable individuals participating in sport intervention programmes. Research conducted from 2020 to 2022 applied a contextually intelligent approach to explore hyper-local SDP interventions, revealing that sport interventions can facilitate positive disruption, and can be effective through a focus on hyper-local specificity, programme customisation to local conditions and alignment to the complex interaction between youth participant needs and their vulnerabilities.