Thank you for all your responses, very helpful!
Cougie - my training for Amsterdam was very inconsistent and I was not as well prepared as I was for Reading. I missed about a month and then I did the classic cramming it at the last minute. My longest runs were 10, 12 and 15 miles. I run twice a week with a running club, speed sessions on Tuesdays and an out run ranging between 6-9 miles on a Thursday but again I had missed a few. I was very surprised at how painful the last 6k were, and I cannot decide whether it was down to lack of endurance or lack of practicing at race pace, or probably both!
Reading was my first HM back in April and it was much more comfortable!
Johnas thank you for the links, really good articles. I do speed work with the club on Tuesdays, ranges from 200m efforts up to 1m efforts and sometimes fartleks. I don't think I do enough tempo running. I always thought that should be HM pace, if I want to run 1hr50 it would work out at 08:24 per mile. My tempo runs should be quicker?!
But as you say build up gradually!
Ironcat - I live in High Wycombe so not far from Wokingham or Reading - I have actually entered both races next year! Wokingham is very popular with our club, and Reading because I loved it this year! Thank you for the advice on Wokingham, I hadn't factored in the weather. I guess with it also being in Febuary, the great British weather may have something special in store! I assume you have run Wokingham then?