Mackenzie Dern is building the momentum that has eluded her. For the first time in four years, Dern has consecutive wins. The decorated Brazilian Jiu-Jitsu star weaponized her grappling to hand Amanda Ribas her first submission loss at UFC Fight Night on Saturday.

Mackenzie Dern kicked off 2025 with a heaping helping of revenge. The strawweight jiu-jitsu ace submitted Amanda Ribas with a nasty third-round armbar on Saturday night in the main event of UFC Vegas 101,

Mackenzie Dern checked a lot of boxes Saturday when she defeated Amanda Ribas in the UFC Fight Night 247 main event. Not only did Dern (16-5 MMA, 11-5 UFC) pull off her first stoppage since April 2021,