Current Situation
Racehorse fatalities are the most visible welfare metric in horse racing. Studies in the UK report approximately 1.5-2 fatalities per 1,000 starts, with musculoskeletal injuries as the primary cause. In the US, the Jockey Club's Equine Injury Database reported approximately 1.45 fatalities per 1,000 starts in 2023. Synthetic track surfaces have been associated with reduced injury rates in some studies. The Horseracing Integrity and Safety Act (HISA), implemented in the US in 2022, created the first national safety and medication standards for the industry, replacing a patchwork of state-level regulations. The Horseracing Integrity and Safety Authority (HISA) administers the program, covering all thoroughbred racing at HISA-covered tracks. Medication practices have been a central welfare and integrity concern. Furosemide (Lasix), used to reduce exercise-induced pulmonary hemorrhage (EIPH), has been restricted under HISA to allow international harmonization with countries that prohibit race-day medication. Anti-inflammatory and analgesic medications can mask pain, allowing horses with injuries to race when they should not—contributing to catastrophic breakdowns. Early-warning injury detection systems using biosensors, gait analysis, and imaging are being developed and deployed. The Rood & Riddle Equine Hospital's collaboration with Santa Anita Park demonstrated how systematic pre-race examination, imaging, and triage can reduce fatalities. Training and conditioning practices affect welfare significantly. Young horses trained and raced before skeletal maturity face increased injury risk. The average age of first race start has risen in some jurisdictions following welfare reforms.
Key Welfare Issues
Evidence-based welfare improvement requires understanding both the science of animal needs and the practical constraints of production systems, cultural contexts, and economic realities. Effective interventions combine research, policy, industry engagement, and consumer action.
Pathways Forward
Progress on animal welfare requires coordinated action from researchers, policymakers, industry, and consumers. International frameworks from WOAH, regional regulations, and market-driven certification schemes all play roles in driving improvement at scale.
Further Reading
Resources from the World Organisation for Animal Health, peer-reviewed journals including Animal Welfare and Applied Animal Behaviour Science, and welfare certification organizations provide evidence-based guidance for practitioners.