A review of 14 horse deaths at Saratoga Race Course last summer found no definitive cause of why they happened, saying rainfall "could not be overlooked" as a factor.
The Horseracing Integrity and Safety Authority (HISA), in a report released Monday, said a multitude of risk factors played into the 13 racing or training deaths of thoroughbreds during the 2023 season at the track in upstate New York. Another horse died in a barn stall accident.
HISA's investigation found that rainfall of more than 11 inches, compared with less than 9 inches in 2021 and less than 8 last year, could have played a role. The federal agency now in charge of overseeing the sport did not uncover any rules violations that contributed to the fatalities, 12 of which came from musculoskeletal injuries.
Three of the 11 horses that suffered fatal fractures were given a corticosteroid injection in the affected joint within 30 days of racing. HISA has requested a rule change, currently under review by the Federal Trade Commission, to ban such injections into a horse's fetlock joint 30 days before a race.
An analysis of exercise history showed that those that participated in more frequent high-intensity workouts at longer distances were 2 1/2 times more likely to be injured.
"There are horse level risk factors that likely contributed to risk for injury," Dr Susan Stover wrote in the report after her analysis. "The factors observed are consistent with our knowledge of repetitive, overuse (fatigue) injuries in racehorses. Frequent high-intensity exercise (as observed in injured horses) that does not allow for recovery of exercise-induced microdamage contributes to the development of stress fractures and subchondral stress remodelling, which predispose horses to catastrophic injuries."
