For those of us who have only ever run shorter distance, this is an average mile time over the whole course of about 4:33.84 minutes.
The current world record for a single mile is 3:43.13, which would shave about 22 minutes off the two hours, for a hypothetical 1:38:00 minimum time if we assume perfectly linear extrapolation of human physiology given the proper training techniques (seems unlikely, given that you would need 26 pacers that could all run at world record pace or something like that). Said another way this would allow one to run about 6 additional miles in the same time if you could sustain the pace for the duration rather than the distance.
The current world record for a single mile is 3:43.13, which would shave about 22 minutes off the two hours, for a hypothetical 1:38:00 minimum time if we assume perfectly linear extrapolation of human physiology given the proper training techniques (seems unlikely, given that you would need 26 pacers that could all run at world record pace or something like that). Said another way this would allow one to run about 6 additional miles in the same time if you could sustain the pace for the duration rather than the distance.