Hi Nicole!
This is a question that I get quite a bit. So, I actually posted about it on the
runDisney blog. Definitely check that out if you get a chance!
As I say in the blog piece, I much prefer to visit the parks after a race. There are many reasons, but mostly, it comes down to being more relaxed. I always get a bit nervous before a race! Plus, one of the things I love about the Disney Parks is all of the food!! If it's before a race, I have to watch what I eat, but if it's after, then I can be more adventurous! I can also stay up later:)
Yes, I am always a little sore after the event. (sometimes, a LOT sore!) But, walking around the parks is actually a great way to loosen up your tight muscles. I always feel much better if I am active the day after a race, than if I just sit around all day.
I hope this helps answer your question! Please let me know if you have any others.