Tour Divide

https://dotwatcher.cc/race/tour-divide-2019

Meanwhile, back at Brush Mountain Lodge, the racers faced the
indignity and reality check of Reid Passmore, a tourer on his heavy
touring bike, riding solo NOBO over the "impassable" trail from
Steamboat to Brush Mountain Lodge. It seemed to be a wake-up call for
some of the racers who were convincing themselves that the track was
"not passable" - despite 4 riders having already passed it. That from
a group of 11 racers, no-one would harden up, suck it up and start
hiking with their bikes on their backs, was surprising to many
veterans in the bikepacking community.

Embarrassing!

From Kim Raeymaekers post you can hear that they were relying on
hearsay and someone doing a reconnaissance ride on Lael's film crew's
electric bike:

That sounds like cheating to me.