QUALITY MATE....like people have said load up on cards and stretch like fek every day before and after the run,i used to drink flat coke its great for that suger rush,but its going to be a mental battle more than anything else,ive no doubt you could do it physically if youve ran before,,and judjing by your name you may have had a military background,,have you considered using a small day sack full of goodies ? I stick to fast walking now im doing a 26 mile hadrian hike in the next few month if anyone fancies it,,my last time was 6 hours 10mins cross country which is about 14 min miles ish,,we