There is a runDisney facebook group and they talk about it often how easy it is to UBER, and I have never read a negative thing about getting an UBER for RunDisney events when you are staying offsite.

Getting an UBER back... I don't remember what any of them said. I know I have had UBER drop me off at EPCOT before, and its right where the buses are - so I think getting an UBER there would not be difficult.

I would volunteer to drive you back, but that means you would have to take the bus back to my hotel, and then we leave from there - and you would probably be home and showered before my bus got back to the hotel LOL!