I don’t know anything about the location so which hotels are good for the race? I searched Innsbrook MO and Wrightcity MO but came up with nothing.
You best bet is to reserve something at the Innsbrook resort. Barring that, your best bet will be to book something in either Lake Saint Louis, O’Fallon, or St. Peters. All are ~20-25 minutes from the resort.
There are a couple of hotels in Wentzville MO…this is about 10 highway miles from the resort exit…then I think it’s 5-7 miles from the highway to the resort…if you can find a spot in the resort…do it!
Try this…not cheap but if you could split it the location would be great…
Paul
Wentzville is going to suck for food options though unless you enjoy pre-race Mexican. Although I do think they have that Nike outlet store 
Actually Jeff and I ate at this place LY and it didn’t suck…nothing as good as “the Hill” but not bad…
http://stlouis.citysearch.com/profile/5782105/wentzville_mo/ruggeri_s.html
For hotels try the Best Western in Foristell on Hwy 70 and the Super 8 which is right next door to the above dining place…
I just released four rooms from a block at the Best Western. Stayed there last year and it was good- and the manager said that they have updated all the rooms (which were fine then). Here is the info.
BEST WESTERN I-70 INN 12 hwy W, Foristell, MO 636-673-2900 It’s pretty much the closest and “nicest” w/o staying at the resort.
Actually the Nike Outlet is in Warrenton (Exit 193)… know it by heart. I think I’ve made about 500 trips from CoMo to the StL in the last 5 years.