Background Equestrian eventing involves competing in three phases: dressage, jumping, and cross-country. Competitors are ranked by number of penalties accrued—with those who have fewer penalties ranked higher. Completing the cross-country phase with zero obstacle penalties is commonly referred to as ‘running clear’. Understanding factors associated with running clear can help athletes plan strategically for success, while also helping governing bodies to refine qualification criteria for elite levels. Objectives This study was carried out to identify factors associated with running clear in the cross-country phase of Fédération Equestre Internationale (FEI) eventing. Study design Retrospective cohort study of 107 348 horse starts w...