I'm not, and won't until Sept. I can see your feelings about excluding a group of people and that makes sense. I heard a defense of a womens only Tri that it was a good intro and a mixed gender one might be intimidating for a first time racer. I've never done a womens only anything but I have to say I'm a bit happy that my tri is womens only. Now if I ever get to your level (and most people on this site!), maybe I'll think differently