Given the rapid expansion of the German sports-betting market and recent changes in market regulations, it is interesting to reexamine the socioeconomic profile of German sports bettors: Who bets on sports? In order to analyse this question, this study used an online survey to collect data on sports-betting behaviour (N=634). It modelled participation in sports betting by means of a logit model that recovers determinants of a person’s propensity to participate in sports betting. Results show that the typical sports-bettor is 32 years old and male, has a low household income, is highly interested in sports, and is willing to take risks.