Questionable fight smarts from Waterson, if you know your opponent has a weak ground game and you just lost a round of standup, why would you wait until round 4 before even attempting a takedown? Hello? Marina also has a ton of work to do, she's still completely lost on the ground, and worse yet, I've never seen anyone walk straight into that many Waterson side kicks. She kept trying to use her punches against Michelle while eating kicks everywhere on the way in. She could've out-ranged Waterson badly if she used her own kicks, and when she did kick she had a lot of success, but it seems like she fell in love with her hands after the Ribas KO.
Personal thoughts. Marina loses to everyone ahead of her in the rankings with the possible exception of Xiaonan. She doesn't have the speed, technical skills, or fight smarts to beat them. Rose, Weili, and Joanna will punish her badly in the standup, and Carla & Dern will put her on her back and either blanket or finish her. Waterson remains a good benchmark for fighters with title hopes. Top fighters like Rose & Joanna go right through her without much trouble, fighters a level down from that will struggle even if they win.