She didn't leverage her weight properly.
round 1
First grapple attempt at 0:10 - instead of going forward she goes backward, skinny breaks away easily, fatty falls
0:12-0:20: fatty doesn't guard properly, skinny gets inbetween it easily and starts pummeling. fatty doesn't grab or roll to a new position
round 2
skinny has longer reach (and is faster) so stays out of reach of fatty while hitting her. makes a mistake of clinching (0:41) and fatty clinches back, forcing skinny backward - this was the point where she *could* have gained the advantage by rolling onto skinny/dragging her down. However, skinny turns and pulls fatty sideways to the ground, and proceeds to pummel again, fatty doesn't even bother guarding anymore.
TKO
