My Exercise
From Humphrey, I determined the following pace conversions:
| 2.5 miles | 2 miles | 1 mile |
| 9:00 | 8:52 | 8:22 |
| 8:00 | 7:53 | 7:26 |
| 7:00 | 6:53 | 6:30 |
A good fit for these points is that a runner's total time at distance D is given by a*D-b, which is equivalent to saying the pace is a-b/D. This suggests the 1.5 mile times are 13:03, 11:36, and 10:11, respectively.
Using linear interpolation, we can convert from Texas' 1.5 mile times for 25-29 year-old males PRT Standards to 2.5 mile times, giving us rough 2.5 mile time percentages:
| % | 1.5 Mile Time | Est 2.5 Mile Time |
| 50% | 12:16 | 21:10 |
| 60% | 11:42 | 20:10 |
| 70% | 11:17 | 19:26 |
| 80% | 10:43 | 18:26 |
| 90% | 10:04 | 17:18 |