I did email back and get a response confirming the Park Party is in place of the 5K.
I work with a Volunteer group here in South Jordan and we were lined up to help with the 5K. For some odd reason they just stopped returning our calls... then I got the email.
So maybe the thought is that more people would participate with the park thing then the run. Personally I was hoping that the 5K was just the start and they would work over time to build it to a larger run and possibly add a bike tour as well.
Oh Well, I guess i will see all of you in the park...