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ultra marathon

Follow these eight programming principles, and you can run an ultra marathon in twelve months, too.
A recent study examined the relation between age, length of race, and performance in ultra-marathoners.
It turns out the problem with training in heat isn’t dehydration, but something else entirely. This is very different from what we've been told.
A new analysis of thousands of ultra-marathon runners revealed patterns in foot strike, stride length, and blood markers.
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Considering trying your first ultra? Here's what to expect and how to adjust your training for success.