My goal was to beat 9 min/mile and I did it in spite of a slow first mile. With the exception of the seventh mile, each mile was an improvement over the previous one. These were my splits: 10:20, 9:06, 8:46, 8:39, 8:36, 8:34, 8:35, and 8:12 (partial). Overall, it was 7.31 miles in 1:05:09 for an average pace of 8:55/mile and an average heart rate of 149bpm with 165bpm max. My heart rate increased with my speed and distance. At some point, this run would have been unsustainable. I just don't know what that point is. |