Just got a ballot place in the VLM. Have been running for 18 months but furthest I have ever run is 13 miles which I ran a couple of weeks ago. Need advice on: 1. Training schedule. There are so many around, can anyone recommend one? Preferably one that has distance to cover rather than time. Also most training plans seem to be 20 weeks or less so when should I start the plan? I currently run 3 times a week, around 20-25 miles in total. 2. Goal time. Should I have a rough goal and what should I base this on. If I plug my 13.1 time (1h 41 mins) into the Macmillan calculator it says less than 4 hours but this seems a bit optimistic! 3. Weight. I have quite a low BMI but have been the me weight (7 stone) for about 20 years (I am female and 41 and am 5 foot 3). Will I run better if I put on a bit or should I stay as I am. Sorry for lots of questions but really want to give this a good go!