US / Kentucky Derby 8th Horse Dies at Churchill Downs 7 others had died in recent weeks at home of Kentucky Derby By Newser Editors and Wire Services Posted May 15, 2023 12:40 AM CDT Copied Horses come through the first turn during the 149th running of the Kentucky Derby horse race at Churchill Downs Saturday, May 6, 2023, in Louisville, Ky. (AP Photo/Julio Cortez) A horse died Sunday after a race at Churchill Downs, making it the eighth fatality in recent weeks at the home of the Kentucky Derby, the AP reports. Rio Moon “suffered a catastrophic injury to his left foreleg a few strides after the wire,” according to notes in the Equibase chart for the sixth race. The 3-year-old colt ridden by Martin Garcia was euthanized, the chart said. Rio Moon was trained by Dale Romans and was winless in six career starts with earnings of $11,621. Two horses were euthanized after being injured in races on the Kentucky Derby undercard on May 6. Five others were euthanized after training and racing incidents at the track in the days leading up to the Derby. Trainer Saffie Joseph Jr. was indefinitely suspended by Churchill Downs during Derby week after two of his horses collapsed on the track and died. Kentucky racing officials scratched his Derby entry, Lord Miles, too. (More Kentucky Derby stories.) Report an error