I think it's cool for them to add another event to expand the weekends to have more offerings. Having run a 10K, I know it's a good length race to feel a big accomplishment without something as long as a half marathon. I'd have to say the one thing I'm disappointed is that they simply named it the Tinker Bell 10K to go with the Tinker Bell Half Marathon. I would have rather them named it something to theme with the weekend, but not the same. I've heard some worry over it being too much of a good thing, diluting the runDisney overall, but I don't think it does. I like the expansion, that opens the doors for more people, not just for the sake of expansion. I think this does that for the west coast. In the end, I think it a good addition.
Registration opens July 9th at 12:00 pm, so mark your calendar if you want to run in the inaugural Tinker Bell 10K. (Or, you are an annual pass holder, Disney Vacation Club Member or Disney Rewards Visa Card holder, register early like you get to.)