I looked at the
Westgate Las Vegas odds, and they list Hamlin at 18-1 and eight drivers are more favored than Hamlin. Odds can of course differ from book to book. However, a spread that big between competing books is extraordinarily rare, and there are other large differences as well. So something is weird.
Out of curiosity, I added up the implied win probabilities of all the odds. For the Westgate book, the cumulative total is 138%, and the +38% is of course the source of the sports book's profit margin. A number like +38% is on the high side, IMO, but conceivable for a large field like this. Johali's win probabilities add up to 199%, and that +99% margin is a bright yellow caution flag to me.