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that's about a month's distance to run for a normal long distance runners (90 miles/week).

Varsity level distance athletes I knew wouldn't run 12 miles a day 7 days a week all month, not even when training. They do more like 5-7 miles, for about 5 days a week during off-season (and something like 15-24 miles about twice about a month or so prior to a marathon event). So it's more like 40-60 miles a week, for a fairly committed athlete?

Not just that, your math indicates running for 30 weeks at 90 miles/week...not a month. That's 7 months =)

More realistically, a really athletic guy who has the comfort of nice running clothes and comfortable places to rest and has been training for a few years, would cover maybe 50 miles running and an additional 28 miles walking each week, and still take about 7 months.

You'll look less silly if you double check why people are impressed by something before dismissing it as trivial (by your tone that's what you seemed to do).

Coo, I feel better about not being at all athletic and still averaging 73km/45mi of (recorded) walking a week for 2014 (746km as of yesterday).

Not sure how long I could keep up 90mi/week though...

gotta work on that math buddy

About all commenters making fun of you. You meant 7 months (33 weeks). Ultramarathon each day is beyond capabilities of any living (or dead) man on this planet.

Well, this just blatantly isn't true since

"[Dean Karnazes] ran 3,000 miles (4,800 km) across the United States from Disneyland to New York City in 75 days, running 40 to 50 miles (65 to 80 km) per day, 2011"

But it is not 90 miles / day. Still very impressive :)

True but "ultramarathon" is "anything longer than a marathon" and 40-50mi/day easily disproves the "humans can't ultramarathon every day" statement.

I'd agree that it's very unlikely anyone could keep up 90mi/day for very long. If Karnazes can't ...

Here's a guy who ran one 875 ultramarathon in 5 days at the age of 61 - without sleep or otherwise resting:

http://www.badassoftheweek.com/young.html

Cliffy Young is awesome. He's a national hero in Australia.

Yeah, he's amazing. Makes you wonder how many other heroic athletes are just bumbling about in normal life without people noticing them.

I wouldn't be so sure. There's this woman[1] who ran 366 marathons in a year -- that is one per day and two durnig the last day of the year since she started. (And despite the interview was done after she had ran 100 marathons, she finished her project last July with 366 marathons as intended.) Yes, it's not ultramarathons, but I guess she still stretches the boundaries what some of us would consider humans being capable of.

That's almost 15450 kilometers in a year(~9550 miles).

1: http://blog.endomondo.com/2012/11/07/annette-fredskov-366-ma...

Well, I think marathon each day is possible. I believe that's not far from what average persistence hunter runs a day (I have not checked my facts however). Running 3-4 times that is impossible IMHO. I have found this:

http://en.wikipedia.org/wiki/Self-Transcendence_3100_Mile_Ra...

It is 60 miles / day. Maybe it is upper limit?

90 miles per day?

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