Yeah, I just completed a 100 mile ultramarathon where over half of the starters didn't finish. I was miserable (heat, blisters, quads busted from downhills), but right now I am trying to fill in the rest of the year with similar events!
I did two long training days in Cool this past weekend, on some of the same trails as Canyons the week before. High temperatures were in the low 50°s. Y’all got really unlucky with the heat. That DNF rate was brutal — congrats on getting a finish!