Sport and wagering are not in opposition. They are structurally entangled — commercially, economically, and legally — in ways that cannot be cleanly separated. This lecture examines the regulatory architecture built to manage that entanglement. Sport has commercial value because it is uncertain, and corruption destroys that uncertainty. The heart of the lecture is the Sports Controlling Body framework — the centrepiece of Australian wagering integrity regulation — which gives sporting bodies the tools to manage integrity around their events: suspicious betting alerts, market suspension authority, and information-sharing with operators and law enforcement.