Actually it would be quite funny to see this for individual competitions. Let one inexperienced golfer play a course the week before and highlight how bad there score is during broadcast. Barkley marathon apparently gives out a destined for failure entry each year.
The title said "...RUN a marathon...", a 5:58 effort is a bit faster than a brisk walking pace of 4mph.
For such a young and slim looking guy, this is kinda embarrassing, but maybe the random 24 hr notice messed with his mental prep. Years ago we egged on a friend to register on a whim just days before a marathon i was running in. Other than softball and some hiking, he did zero training and had a desk job. He was naturally big/lean, 6ft-1, 190lbs 12.5% BF, ~38 yrs old. During warmups in a park he sprinted by the top Kenyans shuffle-jogging, which probably misled him. But hey, he finished just under 5:50 iirc, on a very hot day in sunny California. He walk-jogged the first half, then power walked the last half with some woman in her late 70s (she pulled away last mile), sprinting the last 50 yards to the finish line. Next few days he could only go down the stairs backwards, laughed his head off about it. Good times.
I'm not sure it's "embarrassing", but it's definitely unimpressive. He ran like 13:40 per mile. A 17 min mile is a really brisk walking pace, so there's a pretty big gap between what he did and that. But obviously that's not a running pace either. I'm assuming he slogged through it as you would expect an average-built, average-talent, untrained, inexperienced person would. This is an exceptional nonstory.
I'm gonna have to try running 13:40 pace to see what that feels like. Seems like it would really hurt after few hours, too much relative vertical component and breaking stride.