I chose to run the long course today. (2010 - short, 2011 - medium, 2013 - long). It was an exhausting 20kms but nevertheless an enjoyable run. Made a small mistake at #3, lost half a minute. The next problem waited until #13, where we had to change maps (4 maps altogether for the long course). Here the organiser when he saw me sent me through the underpass under the road, assuming that I already have the new map. Had to go back to pick mine up and continue on the course. Lost about a minute with this endeavour. After this the other points were all right.
Maps are in my DOMA
Map 1,
Map 2,
Map 3,
Map 4