That’s all horse racing tracks. It’s a brutal sport with a lifespan measured in single digit years for the horses. It needs to stop.
The deaths are mostly all mercy killings, to be clear. Horses are very medically fragile. Virtually any physical injury results in being forced to have them put down. It’s true in all equine sport, but racing is the NFL of equine sports. Injuries are very frequent, thus so are deaths.