I ran out on the Pittman Wash, and on the way back I ran 2 miles at a HR of approximately 170, finishing in 11:05 (5:20, 5:45). Splits for the 2 miles are so different because the second mile rolls up and down constantly with 4 sharp turns, while the first mile is a steady gradual downhill. I also averaged 171-172 HR for the first mile, so I backed off a bit, averaging 169 HR or so for the second mile. The terrain differences and the decreased effort really made a big difference. There was also a mild headwind during the 2 mile tempo that slowed me a little, but not a lot. After about a mile and a quarter easy I ran another half mile at 170 HR in 2:35. This half mile had a lot of downhill (with one short but significant uphill) which is why it was so much faster. Total time for the run was in the 1:17:xx range for 10.5 miles (not entirely sure on the time because I cleared my watch part way into the run. |