The 125 lb bracket is going to be great entertainment! Davis actually probably has the best chance to make the quarterfinals at around 70%. Stanich about 60%, Ayala around 55%, Barnett 50%, Noto 50%, Ramos 50%. This is cumulative probability to that point. But even at 70% there is a ~ 1/3 chance of NOT making the quarters. That is very high for 1-4 seeds. Every match after is pretty much flipping coins. In fact most second round matchups are pretty much flipping coins too.
Davis's draw is actually pretty good relatively speaking. His first match he is a very heavy favorite and his second match he should be a solid favorite. I think his quarterfinal opponent is most likely to be Richie Figs and that is close to a coin flip.