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Take advantage of summer.
Check out photos and footage of the epic 100km journey.
Get off the treadmill and try one of these alternatives.
Pete Jacobs walks you through this grueling race.
Maximize what you get out of your cardio by avoiding these pitfalls.
Patrick Lange and Daniela Ryf reigned supreme.
Kevin Masters decided to transform himself into a new man.
The most decorated Olympian of all time jokingly challenged the "Notorious".