Bridge, but coming into The Mall was just incredible. The key to my race was running to my heart rate, anyone out there who doesn't run with a heartrate monitor is mad!This was an unbelievable day for me and I'm already looking forward to next year
.Running the second half only 1:13 slower than the first was a real achievement for me, and required a lot of focus. My heart rate was a steady 153 bpm for the first 10 miles, but then rose slowly but surely, reaching 171 in the last mile as I concentrated