| Opened | May 17, 1875 |
| Last Race Date | Still in Operation |
| Racing Type | Thoroughbred |
| Abbreviation | CD |
| Signature Race | Kentucky Derby (GI) |
- 05/17/1875 Opens for racing first derby run at one and a half miles.
- 00/00/1893 Track sold by original owner derby switched to mile and quarter.
- 00/00/1895 The twin spires are erected on grandstand.
- 00/00/1986 Churchill Downs is designated a Historic Landmark.
- 05/04/1974 163,628 derby fans turn out one year after Secretariat electrifies the racing world.
- 05/06/2006 Derby fans bet $24,477,883 on track to set all time handle record.
- 06/19/2009 First night race run at Churchill Downs.
- 06/22/2011 200 horses are displaced after a tornado rips through the stable area.