This year's Tartu Marathon organizers were optimistic about holding the event on the traditional course despite last year's challenges due to lack of snow, which forced a relocation to Alutaguse in Ida-Virumaa. Over the marathon's history, it has experienced both thawing conditions and severe cold, showcasing the unpredictable nature of Estonian winters and their impact on winter sporting events. The Tartu Marathon route has evolved into a barometer for weather, reflecting a shift in climatic reliability. In past decades, there was a reasonable expectation of a solid snow cover by mid-February, making the event a staple for winter sports in Estonia. Currently, however, each winter brings uncertainty that not only affects the quality of the skiing experience for participants but also raises concerns about the event's ability to take place at all. The changing weather patterns represent a broader climate challenge facing winter sporting events and highlight the need for adaptive strategies for organizers. As conditions fluctuate, the Tartu Marathon serves as a case study for similar events globally that rely on consistent winter weather, prompting discussions about sustainability and the future of such traditions in a warming climate.