I'm curious about Ryan Hall's longer tempo runs from his his chat with RW:
http://dailynews.runnersworld.com/2007/01/a_brief_chat_wi_1.html
Several times he mentions the longer tempo runs he does. He also mentioned that he ran tempo runs around 4:50 at altitude (which, as he says, is about the same as 4:40 at sea level). Somewhere else (and I can't find the source again) there was mention of some of his longer tempo runs being 12 miles. Running 4:50 at altitude is a much faster pace than a mere medium-length, marathon-pace training run.
I'm curious. I've normally considered a tempo run to be about 30-45 minutes in duration at a pace roughly equivalent to 15K-20K pace. Those long, hard tempo runs at altitude certainly paid off for Ryan Hall (not that this one kind of run was the only thing that got him to the new AR). Do other elite marathoners normally do tempo runs that long and that hard?
Just curious.