Endurance racing pushes horses to extreme physiological limits - welfare failures including metabolic collapse are a significant concern requiring rule reform and better monitoring.
Endurance racing welfare sits at the extreme end of equestrian sport welfare challenges. The distances involved push horses to physiological limits regardless of good management - metabolic collapse is an inherent risk at distances over 120km. Reform efforts have focused on mandatory vet holds, compulsory elimination criteria, reduced competition distances, and better hydration management. However, the competitive incentive to push horses too hard is structural. Welfare organisations including World Horse Welfare have called for stricter oversight and potentially reduced maximum distances at the highest level competitions.