The fighters gassed themselves out in a furious first round in which Palelei worked ground and pound while Krylov attempted numerous submissions from the bottom.
Because of the early exertion, both men fought exhausted from that point on until Palelei finished Krylov at the 1:34 mark of the third round.
"Mercifully" finished, to hear Dana White say it.
"You don't want to hear my thoughts on that fight," he said in the post-fight scrum. "That was fight was embarrassing. That looked like a Toughman fight."