Another year of massive turnover at the top. HW Miocic def. Werdum MW Bisping def. Rockhold WW Woodley def. Lawler LW McGregor def. Alvarez FW Aldo def. Edgar, Holloway def. Pettis (i/c) BW Garbrandt def. Cruz WBW Nunes def. Tate LHW Cormier retained (since 2015) FLW Johnson retained (since 2012) WSW Jedrzejczky retained (since 2015) Only two champions have more than one successful defence.