Dern most recently fought Xiaonan Yanat UFC Fight Night on Saturday October 1, 2022. Mackenzie Dern lost to Xiaonan Yan by Decision at 5:00 of Round 5in the Strawweight division. 24 mars 1993 · Mackenzie Dern MMA Stats, Pictures, News, Videos, Biography - Sherdog.com United States Phoenix, Arizona Mackenzie Dern ASSOCIATION RVCA CLASS Strawweight Wins 13 KO / TKO 0 0% SUBMISSIONS.