I had a banana sandwich, cup of tea and granola bar about 2 hours before I went out. Then only thing I had whilst running was one Clif Shot Blok which I think I prefer to gels. The last mile or so was tougher than I thought it should be.
But I now know that I ran 18 miles in total having tracked my run on googlemaps.
My sportswatch must have lost its GPS connection around mile 14 and it was another mile or so before I noticed. At this point I was comfortable and running at about 9:20 min/mile avg.
Running blind I actually sped up for the last 3 - 4 miles and finished with an overall average of 9:11 min / mile. It was getting late and I knew dinner would be ready so I did know that I had increased my pace.
While probably faster than I should have run overall other than the initial 2-2.5 mile climb whilst I was warming up, the last mile and for a little while immediately after going over on my ankle I was comfortable and running at conversation pace.
Ankle is ok at the moment so I might have got away with it.
If it is very cold again in the morning I might do my recovery run at the gym and then go for a quick swim. Probably only going to do 4 miles tomorrow rather than 6 as I have put the odd extra mile in here and there this week.
Good running today everyone. 
Edited: 12/01/2013 at 22:46