This study aims to analyze the implementation of inclusive sports policy in the development of athletes with and without disabilities in Trenggalek Regency and to identify factors supporting and constraining its implementation. A qualitative approach with a case study design was employed. Data were collected through observation, in-depth interviews with stakeholders, including the local sports agency, KONI, NPCI, coaches, and athletes, as well as official documents. Data were analyzed thematically using NVivo and guided by six variables of the Van Meter and Van Horn implementation model: policy standards and objectives, resources, characteristics of implementing organizations, communication, disposition of implementers, and the social, economic, and political environment. The findings indicate that sports policy implementation in Trenggalek remains suboptimal and not fully inclusive. Regional Regulation No. 14 of 2017 provides a legal basis for sports development but does not specify technical mechanisms for developing athletes with disabilities. Resource constraints are reflected in the substantial budget disparity between KONI, which received IDR 1 billion, and NPCI, which received IDR 50 million, as well as athletic-track facilities that do not meet national standards. At the same time, institutional, organizational, technical, and individual adaptations have emerged, including the transformation of the local sports agency into an independent agency, NPCI initiatives, modified training equipment, and coaches' self-funded professional development. The study also reveals a resource–achievement paradox, whereby the continuity of training and competitive achievements among athletes with disabilities is maintained despite limited institutional support. This condition indicates the role of social capital, particularly athletes' perseverance, coaches' commitment, and family support, in sustaining the development process. However, social capital cannot substitute for adequate public funding, infrastructure, and institutional support. The study concludes that strengthening inclusive sports policy requires more equitable resource allocation, specific technical regulations for athletes with disabilities, accessible sports infrastructure, and stronger interorganizational coordination.