Can't Forget the premier race in CO, Gore Race. It once meant something and I would speculate in another few years it might rebuild its former reputation.
Honorable mention sickbird race, GnarFest on Little Grass Valley Section of the South Feather. Which includes a 30 footer that just a few years ago was considered unrunnable by most.
But in reality the only races that matter are the Green, NorthFork, Sickline, and Grand Prix. The rest are just fodder for local heroes.
Homestake is just a silly sketchy place to conduct a race.