Talk to the guys in Leadville
The key is to find the right course, because on packed snow OR deep/unrideable snow "normal" bikes will usually win (ie they are faster on hardpack and also faster to carry through deep snow) and the fatbikers will be angry. I know the winter Teva games (Vail) solved that problem by just making a separate category for bikes with 4"+ tires and handing out more prize money for that category last year.
I would show up (on my skinny bike) because I always like to support local races. I imagine permitting and logistics would be a nightmare unless you have a connection at a resort or the FS.
Fatties are great for epic adventures on all kinds of terrain. They aren't fast, though, even on many types of snow as compared with normal XC bikes. So if you keep the lycra jerks (ie, me) away, and make it all about fun, it could be great. But at that point some kind of enduro/poker ride type of event might make more sense. Strava/HRM/Zone 4 idiots will show up at anything advertised as a "race".
Originally Posted by Silentfoe