The development of health promotion interventions using settings-based approaches in sports clubs remains a challenge. Intervention implementation in real world settings should be specific to a sports club’s context, especially considering the voluntary nature of the administration of most sporting organizations. The present paper aims to map and analyze the development of the PROSCeSS intervention, designed to support sports clubs to implement health promotion interventions. A case study design was used, mobilising the 5-steps of Intervention Mapping — needs assessment, matrix of change, theory of action, program design, plan for adoption and implementation and evaluation — to describe the multi-phase intervention and discuss its adaptation. Results encompass the main findings of a literature review and a concept mapping study as a needs assessment, a Delphi study and health promoting sports club intervention framework to design the matrix of change, a case study among sports clubs and sports federations to select the theory of action, the intervention co-construction to create the program, results from a pilot study to validate the plan for adoption and implementation and presentation of the e-PROSCeSS questionnaire creation and hybrid type-3 protocol as an evaluation method. The discussion explores the tensions created between evidence driven strategies and the needs and habits of sports club stakeholders, the use of top-down versus bottom-up approaches in multi-level design, and reflections on the recursive rather than linear process adopted by the authors. Future research should concentrate on intervention design description, as well as the importance of building iterative feedback when designing interventions.