So we know that RY was near Bannock at 8:19 and was in Laughlin with fresh clothes, sitting by the pool at 12:52. The shortest distance by road between those two points is 40 miles, and that's giving RY a couple of miles north of Bannock as a starting point. Did RY run 40 miles in 4.5 hours through the desert? The answer, obviously, is no. (For reference, the world record for a 40-mile run is 3:48.)
They claim that RY did some offroading. The shortest reasonable route you can draw on gmaps pedometer between Bannock and the casino in Laughlin is 23 miles and change. (Otherwise, he'd be running over the Dead Mountains wilderness.) Did he run 23 miles through the desert on a 95 degree day with no crew, no map, and no compass, in 4.5 hours? Again, the answer is obviously no.
Until this issue is addressed, there is no record attempt. With or without his team's knowledge, RY skipped a big portion of the 23-40 miles between Bannock and Laughlin. That portion also happens to be unrecorded on his TomTom, at least as far as he's shown us. And even if they had a screenshot that showed him running 23+ miles through the desert in 4+ hours in the middle of the day, I wouldn't believe it.