Progression 8 mile run(or Tempo Run). Total 12 miles

I planned to have this workout as 8:20 for first two
miles, then 8 for two miles; then 7:40, 7:20, 7 for the
next 6 miles. And then cool down.

The miles 3-4 were too fast. But that is ok, I did not intend
to run 8 any way. And I thought that if I could not
finish a good progressive, at least I will have a good tempo run.
Yes, it was a good tempo run.

Miles 7-8 with pace 7:19 as expected. I planned to run pace 7 for
the miles 9-10. But mile 9 finished at pace 7:07; and mile
10 slowed as 7:26. But it was indeed a good tempo.
I started running at 10:30am, finished 12:06pm. Not sure whether
I could do better if I started earlier. I know my warm up was a little bit
too fast. Even 8:30 to 8:40 should be ok.

Here are the splits:

Split	Time	Distance	Avg Pace
Summary	1:35:34.7	12.00	7:58
1	8:19.4	1.00	8:19
2	8:13.7	1.00	8:14
3	7:37.8	1.00	7:38
4	7:39.6	1.00	7:40
5	7:41.1	1.00	7:41
6	7:40.7	1.00	7:41
7	7:19.2	1.00	7:19
8	7:17.6	1.00	7:18
9	7:06.7	1.00	7:07
10	7:25.7	1.00	7:26
11	9:11.9	1.00	9:12
12	9:59.2	1.00	9:59
13	:02.1	0.00	9:28