special week (racehorse)
| Sire: | Sunday Silence |
| Grandsire: | Halo |
| Dam: | Campaign Girl |
| Damsire: | Maruzensky |
Real life race horse. Winner of the 1998 Japanese Derby and 1999 Japan Cup as well as both Tenno Shos.
As a sire, Special Week is notable for producing Cesario and Buena Vista.
He is the inspiration for the Umamusume character of the same name.
