Really - http://www.sportident.co.uk/results/...ltsSplits.html
The split results are only there for 2006 with 1:45 splits at CP3, but I don't think I made 1:30 in either of my attempts in 2007 & 8.
I would have been close, but probably more like 1:35 and there were plenty behind me.
I've finished 3:30 - 3:45 so those that were 4 hour plus must have been way outside 1:30 at CP3!