143 days to go - A slow heart never broke 4 hours

Route #2 Duration : 1 hr 4 min 32 sec Energy : 814 Kcal Distance : 7 miles Max HR : 158 bpm Av HR : 144 bpm Mile Pace : 09:13 min/mile Yesterday's faster run left it's mark in my legs and I struggled to keep up the 9 min mile pace today. It is strange the way ones performance changes from day to day. As well as being stiffer than yesterday, I also found it difficult to keep my heart rate in the zone - it would not beat fast enough! I made a big effort at the end and managed to get the heart pumping and ran the last two miles in 17 mins, a much more respectable pace than the previous 5 miles.