Since their inception at the end of the nineteenth century, the modern Olympic Games have been not only a space for competition between athletes aspiring to win various titles but also a field for competition between countries. While several authoritarian regimes have consistently succeeded in this domain, there are significant disparities between authoritarian regimes in their performances at the Olympics. This paper examines the causes of these disparities by focusing on regime personalization as an explanatory factor. Analyzing data covering the period 1948-2008, we found that the ability of any country ruled by an authoritarian regime to win Olympic medals is affected by the regime's personalization level, regardless of its nature (single-party, monarchy, military, or personalistic).