Actually I based it partly on your trans America (which is more typical). One slows down, stops, takes 2-3 zero days & returns at a slower pace. Dave slowed down & crashed, but then ramped up to 110 kms in 12 hours each day, without a single rest day! Unprecedented & unlikely & ultimately unbelievable.
I still have to look at the numbers but it could be possible, even if it's unlikely.
There is also a huge difference in running strategy from a Trans Continental stage race to a non stop effort with an own crew.
But deleting post from people who are questioning a record attempt is never a good thing. You need full transparency. At the end the runner as to prove that he did it, not the other way around.