Predictors of race-day jockey falls in flat racinghttpThe IRRs for five factors associated with falls differed by category of race grade: those for apprentice jockey (interaction p¼0.003), higher prize money (interaction p<0.001) and shorter race distance (interaction p¼0.041) were greater in lower race grades, while those for fewer previous rides this meeting (interaction p¼0.027) and drier track rating (interaction p¼0.035) were greater in higher race grades. Female jockeys had a significantly higher incidence of falls when riding horses under 4 years of age in open and restricted races (interaction p¼0.038), and the effects of lower field size in maiden races, and of shorter races, were more pronounced for falls occurring before the race.Conclusions We identified a range of factors associated with falls to thoroughbred racing jockeys riding in flat races that adds to the evidence base for formulating strategies to improve occupational health and safety standards in the thoroughbred racing industry.