My main goal here is to develop a functional analysis of cheating and corruption in sports, and to differentiate cheating within the broader category of corruption. Whereas officials can act corruptly, they cannot cheat. In contrast, sports participants, since they occupy two roles, can do both. I argue that although acts of cheating are acts of corruption, not all corrupt acts by competitors are acts of cheating. I also respond to some skeptical challenges and criticisms of the concept of ‘cheating’ (...) by providing some opposing arguments and a provisional definition. I argue that cheating in sports occurs in the context of a complex institutional practice. It transpires due to some failing in the efforts and/or limitations of sports officials to prohibit it. In central cases it consists in both the functional and ethical violation of the constitutional norms of a sport in the service of obtaining unearned victory for the cheater. (shrink)