Sport is a global phenomenon engaging billions of people and generating annual revenues of more than US$145 billion. Problems in the governance of sports organisations, the ﬁxing of matches and the staging of major sporting events have spurred action on many fronts. Attempts to stop corruption in sport, however, are still at an early stage. The Global Corruption Report (GCR) on sport is the most comprehensive analysis of sports corruption to date. It consists of more than 60 contributions from leading experts in the ﬁelds of corruption and sport, from sports organisations, governments, multilateral institutions, sponsors, athletes, supporters, academia and the wider anti-corruption movement.