Dilemma

I have decided that running a marathon isn't stupid enough - I've set myself a target of beating 4 hours !!! Training proper doesn't start for a few weeks but I was keen to try out my GPS Gizmo so went for a jog at lunchtime. For the marathon I need to run 9 minute miles and in training 11 minute miles. I ran slower than usual to see what the pace was and I averaged 8.5 minute miles which means only 1 thing - I'm never going to get to the end !! Instead of telling me to speed up as she cycles beside me, Joss will be shouting at me to slow down so I last longer.........