Thanks for all the advice didnt really want to go abroard for first marathon and i looked up Abingdon Bob but didnt fancy multi laps ( soul destroying ) so i,ve opted for the Brighton marathon in April and for a warm up the Stafford half in March . My pb,s are 5k 17.15 10k 37.51 and half marathon 1.24 all done this year i know i,ll have to be at my best to achive sub 3.15 but i,ll give it a go . Thanks all