33 days to go - Hitting the fence

Route #9 Distance : 7.0 miles Duration : 1 hr 2 min 37 sec Energy : 735 KCal Max HR : 173 Bpm Av HR : 140 Bpm Mile pace : 08:56 min/mile Mission statement : 1 mile jog. 3 x 1.5 mile or 10mins fast (06:40 Maximal HR 160+), with 400m or 3-min jog recoveries. 1 mile jog. To be completely honest I was not confident that I could get 1.5 miles in 10 min once, let alone 3 time in a row. This lack of confidence, coupled with the cold windy conditions, may have contributed to the outcome of the run. I managed the first jog and got to the end of the first interval of 1.5 miles in 10 min 30 sec blowing hard and feeling slightly nauseous but pretty pleased with myself. I felt pretty good after the next jog and attacked the second 1.5 mile interval at the same pace as the first. The problem was that I completely ran out of energy after about a mile and had to stop for breath. I am not claiming to have hit the wall here, but I feel I may have encountered a small fence, try as I might for the rest of the run I could not muster better than 8:30 pace. I suppose the interruption to my training followed by last weeks full on effort and my recent less than spotless lifestyle have left their mark. Here's hoping I can do better for the rest of the week.