Posted: 28/11/2013 at 21:45
I did the Madrid mara in 2012 and from looking at the elevation profile online thought it wouldn't be too bad, and whilst it's no mountain marathon it is definitely far from flat with lots of little (and some not so little) hills and undulations throughout!
The other thing that I did not expect was the heat. Although it is in spring and therefore before the heat of the summer, it was still 30 degrees C at 1330 (4hrs 30min) when I finished. Suffice to say it is difficult to recreate that in training in good old blighty.
Take it easy and good luck!