Mangled Horses, Maimed Jockeys
A recent study conducted by the New York Times analyzed information on 150,000 horse races, race track injury reports, and drug test results from 2009-2011. The study found very high incidents of injury, death, and illegal drug use on U.S. racetracks.
On average, 24 horses die per week on racetracks in the United States. Between 2009 and 2011, 6,600 horses broke down or showed signs of injury. An additional 3,600 horses died while racing or training. The greatest number of horses die in California, with 635 deaths between 2009 and 2011. State specific data on racetrack death, injury and illegal drug use can be found here.
Incidents of racing injuries are higher among thoroughbreds than quarter horses, which engage in more sprinting behavior. There were an average of 5 injuries per 1,000 starts among thoroughbreds, compared to 6.5 injuries among quarter horses.
Illegal drug use is also a problem. Since 2009, there were 3,800 cases of illegal drugs detected in racing horses at U.S. racetracks.

