PurposeThis study analyses the impact of institutional logics on the outcomes of a sporting event's risk process.Design/methodology/approachThe research design is an exploratory case study of the 2017 Road World Cycling Championship using a qualitative approach. By drawing on multiple sources, documents and experiences of six key stakeholders the richness of the qualitative data were utilised to provide a deeper understanding of the impact of institutional logics on the process.FindingsStakeholders relied on different organisational and professional logics in arguments for certain risk preferences and strategies. Further, the logics behind stakeholder attention varied between stakeholder groups and within a stakeholder group. This led to a tension-filled relationship amongst stakeholders working in the same organisation and between those in different organisations. Finally, new professional practices emerged; however, there were also unintended consequences, such as a large financial deficit, with a significant part of the cost overrun being the risk assessment work.Research limitations/implicationsThe study includes a case study of a major sporting event that was arranged some years ago. Events are usually organised as temporary projects in collaboration with public sector organisations and must be arranged in accordance with the logics of efficiency as well as meeting the particular needs of citizens. Assuming similar risk planning processes may occur in other contexts is reasonable.Originality/valueThe study contributes to knowledge about the impact of logics on the outcome of risk planning and improves scholars' understanding of risk management and the outcomes of planning mega-sporting events. Moreover, insights into these micro-level processes reveal the importance of dealing with the logics that lie beneath stakeholders' perceptions of risk in order to collaborate, achieve common goals, and prevent cost overruns.