It's a very hard fight to judge, bc of many different factors, and the fact that Pantoja has never been finished, but apparently Kai was back to BW within an hour or weighing in, and doesn't appear to have had a bad cut at all. That was a big variable. He's fought in a cage before, although that and the shitty rule change might be issues, and he loved cornering opponents and loves down knees and soccer kicks. But if either of these fighters has a signature finish, it's Kai's knees to the body. He's extremely fast in throwing them, and mixes them in with combos on the fly. That's as good a guess as any