Barnsley Runner - I don't blame you and Hilly for feeling bad about the situation today. You've both run hard and done well after months of training, and had it spoiled.
Hard to understand how somebody who must be a half decent runner could suddenly run a marathon at half a minute a mile faster than her half-marathon pace, and do a 10 minute negative split without realising that something was wrong. Next year, I predict they will add some timing mats at the turnaround of the out and back sections. Shutting the stable door...
If, and I really hope this doesn't turn out to be the case, but if the course turns out to have been short, There will be a lot of people quite rightly p.o'd. I very much doubt they'll do the right thing and offer money back, but at the very least they should offer a free place in next year's race. Although most people wouldn't take them up on it since it is for charity. Not that the fact that it is for charity gives them any excuse for the c**k-up.
Looking at the course description before this happened, it did look like there were a lot of places where things could go wrong. I wonder if they made too much of an effort to make the course interesting and scenic, and ended up with it too complex and tricky to safely and accurately mark out and marshall.