I'm calling bullshit. Flush it down the toilet with his 47 minute 10 mile tempos.
http://www.trackshark.com/blogs/TimGoldsack/552/Interview+with+Josh+McDougal.html
"I didn't even bring my road flats. I just woke up a half hour before the run...4:41 opening mile, which is on an out and back course which is ever so slightly uphill...two mile split which is just over 9:20...We reach the turn around in 14:38..We finished together in 28:57"