Hi Meredith!
Thank you for bringing your question to the Disney Parks Moms Panel!
The dates for the 2018 Walt Disney World Marathon weekend will probably be announced sometime in the next few months. Going on previous year's dates, I would anticipate the 2018 race weekend to be January 3 - 7, assuming they keep things the same.
For many years now, all of the
Walt Disney World Resorts have been host resorts during marathon weekend. This means they will all have complimentary bus transportation to and from each race weekend event. Since this race hosts the largest number of runners of all the
runDisney events, I would imagine that will be the case for 2018, as well.
I hope this helps! Please let me know if you have any other questions.