This Sunday I am doing my first 50K, its a trail race at Trail Of Tears State Park in Jackson Mo.
Kind of intimidating but I have done 3 full marathons and its only another 5 miles but its on narrow trail and pretty hilly. Hope to do it in about 5.5 hrs.
My marathon PR is 3:30:02 so that kind of gives you an idea of the difference in trail and road running.
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