Using a data set of nicknames of elite athletes compiled from the mainstream British sporting press and media, this article explores grammatical patterns in the way we create hypocoristic nicknames like Hughesie, Robbo and Macca. It outlines the purpose of nicknames and their particular role in sport, and provides an analysis of the predictable morphological and phonological rules that apply to a type of nickname categorised here as ‘transparent’. It offers some initial observations on the social distribution of particular nickname variants and on the potential for creativity and playfulness inherent in transparent nicknaming processes.