I really have to ask... can a man partake in the Princess half-marathon (not for me! my other half... like we could extend out trip?)
Yep! Men took part in it last year as well.
I used it as a reason to take the trip! I did not even run at the time I signed up for the marathon.
Also, there is a great deal on park tickets through the 1/2 so if you have the room-only pin it saves a bunch.