I just finished a 14.162km cycling that lasted about 0hh:50mm:2ss !
It was really hard making my way back to home as I was tired already and it felt harder than it actually is but I think the psychological part was the most stressful part as I was trying my best to not think how tired I was but the hills seemed terribly and longer than they actually we're, I think a dummy mistake was to make the way back home on a road I've done just once but in the opposite direction.
Check out some detailed info at my EXHAUST page
Join me in testing out EXHAUST!