My girlfriend is doing Galloway, with some modifications I made due to her work schedule. Mostly everything was pulled a week ahead.
She also signed up for the Philadelphia Marathon weekend, which is two races back to back, a half on a Saturday and a full the next day. It has the same issue with her work, being a week earlier than the first of Galloway's "Dopey run throughs," so it actually fit the modifications really easily.
I'm only running the 5k, which is still amazing considering I was a couch potato before this year. Once the warm weather snaps, my girl and I are going to sign up for a few in the area, so I get a feel for the distance and stop using the treadmill. The fun ones in the Philly area during the fall are The Skeleton Skurry in Hatboro, PA on Halloween weekend and the Gobble Wobble in Abington, PA on Thanksgiving morning.