I pulled out my packet info from the 2009 5K race. Hopefully the information is the same or close to it.
Race Start- The race will start promptly at 7am in the Imagine Lot at Epcot. Please plan to arrive at Epcot by 6:15am.
Parking and Transportation- There will be bus transportation provided for this event if you are staying at one of the following resorts: Disney's Polynesian Resort, Disney's All Star Movies Resort, and Disney's Caribbean Beach Resort. Transportation will run from 5:00-6:00am prior to the race. The last bus from the resorts to Epcot will depart at 6:00am. Buses will run until 11:00am after the race to return you to your resort. Resort Transportation will be restricted from 6:45am-7:15am due to race course activities.
Spectator Viewing- Spectators are encouraged to view the 5K start and finish in the Amaze Lot and Imagine Lot at Epcot. There will be no viewing areas along the course or from within Epcot.
I can't remember if anyone had any other questions. I would suggest that if you're taking the buses to get to your bus stop early. I didn't sleep very well before the race so I got up and got down to the bus stop where I promptly waited 45 minutes for a bus to show up that had room on it. And only one other bus had passed us, but was too loaded with people to even stop. So plan to get there earlier rather than later. There's music playing and lots of energy and stuff happening at the start. I was by myself and wasn't bored or anything. It was also my first race and I just took it all in.
Also, to whoever asked about characters. I remember seeing a good many characters. There were definitely more CM's than characters, but I remember Mickey and Minnie, Snow White, Cinderella and Prince Charming, Belle and Beast. There were others, those are just the ones I have pictures of. Fun, very relaxed atmosphere.
And I wouldn't worry about being swept either. You'll be so caught up in the rush that you will blow by everyone else. Good luck!

