The buses are running on Thursday when the Expo opens. This year they had a time sheet for events for Marathon Weekend inside by the check in. Bus start on Thursday is questionable.
In 2005 & 2006 we were on the buses around 2 pm because we were at the Expo before it opened and in 2005 no lines. 2006 a few more people.
In 2007 while waiting for the bus at 2 pm we saw one arrive and then start to leave. We started running towards the bus and the bellman who was closer managed to get them to open the door for him only to be told...they were doing 'dry runs' well heck with that it was already well after 2 pm, I'm thinking it was pushing 2:30. Susan asked that same nice bellman to call us a cab we beat the bus to the Expo while it was still doing it's 'dry run'.
I can't say how it will be on Thursday, January 10th but the 'dry run' bus told us they would start the actual pick ups at 3 pm. In Jan 2008 we are renting a car anyways so we will head over early again.
BTW, this year was the longest line we had seen out of our 3 WDW weekends and a que had been formed. That said it moves unbelievable fast. Before you know it your inside the Milk House and then entering were you get the bib/chips. Make sure your waiver is signed. You will need to show ID so don't forget that either. The signed waiver thing I've forgotten 2 out of 3 times
Sorry, can't help with the bus info for the 5K. This will be my 1st WDW 5K and we'll have the car
Allow for time for the Expo if it's your 1st. Not only is there wonderful Disney merchandise there are others present from shoes, socks and tech shirts to other races being represented. There will be speakers that they will have the times for in a little booklet for you. It's a wonderful Expo
Happy training!!!!!