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Mark assesses his progress as he prepares for the big race.
The long- and short-term goals are becoming clearer.
The 20/20/5 plan and getting the right mindset for game day.
The ultramarathoner on how to become a top runner
Transforming urban areas into outdoor obstacle races
Test your summer fitness by competing in a triathlon
No excuses! You can keep burning calories even when the mercury drops.