My Niece fights mma and Boxes as well. Her opinion was Rousey didn’t train for the fight seriously. I found a video of Holly dropping her opponent with the same left roundhouse to the head about a month before the fight and sent it to her(my Niece ) She still thought Rousey would win easy.Even in her last fight, yeah she knocked her out but she ate a few punches on the way in. Holly landed way more and her power is another level above mma fighters. I have not seen a Cyborg fight but Holly and Rousey weighed in equal and Holly looked like a giant compared to Rousey in the octagon. No way Rousey goes up to 145.