Sustainability, defined as the intersection of environmental, economic, and social aspects has been the main theme in recent years. In this context, the sport industry plays a proactive role, the mass resonance of sport events makes them powerful tools to promote more responsible behavior and inspire sustainable practices. Triple Bottom Line (TBL) approach provides a directional framework to assess sustainability performance across its three dimensions. However, existing studies on events often lack methodological homogeneity focusing on single dimensions or adopting tailor-made methods that cannot be easily applied to small-medium scale events. This analysis applies a Life Cycle Sustainability Assessment (LCSA) framework to the 2024 edition of the Granfondo La Fausto Coppi, a medium scale cycling event held in Cuneo, Italy, which gathered 2,300 participants and an estimated 7,138 total attendances over the three-day event.