Ratings for events through December 31, 2018. All weight classes/pound-for-pound.
Key: Fighter won recent fight ; Fighter lost recent fight ; Inactive: last rated win > one year ago
| Dec Rank |
Jan Rank |
Fighter | WC | Rating | Rated Record | Pro | December results |
| 1 | 1 | Daniel Cormier | HW | 96.31 | 18-1-0 | UFC | |
| 2 | 2 | Jon Jones | LH | 77.30 | 17-1-0 | UFC | Beat #149 Alexander Gustafsson |
| 3 | 3 | Robert Whittaker | MW | 75.99 | 12-4-0 | UFC | |
| 4 | 4 | Georges St. Pierre | MW | 70.74 | 24-2-0 | UFC | --last rated win -13 months. |
| 5 | 5 | Khabib Nurmagomedov | LW | 69.43 | 13-0-0 | UFC | |
| 6 | 6 | Tyron Woodley | WW | 67.68 | 16-3-1 | UFC | |
| 8 | 7 | Max Holloway | FW | 65.81 | 18-3-0 | UFC | Beat #25 Brian Ortega |
| 7 | 8 | Stipe Miocic | HW | 59.76 | 13-3-0 | UFC | |
| 9 | 9 | Tony Ferguson | LW | 59.60 | 17-1-0 | UFC | |
| 10 | 10 | Gegard Mousasi | MW | 54.34 | 36-6-2 | Bell | |
| 11 | 11 | Colby Covington | WW | 52.90 | 8-1-0 | UFC | |
| 12 | 12 | Ryan Bader | HW | 52.33 | 18-5-0 | Bell | |
| 13 | 13 | Dustin Poirier | LW | 50.24 | 18-5-0 | UFC | |
| 14 | 14 | Kamaru Usman | WW | 47.53 | 9-0-0 | UFC | |
| 22 | 15 | Kyoji Horiguchi | BW | 47.21 | 24-2-0 | Rizi | Beat #37 Darrion Caldwell |
| 15 | 16 | Conor McGregor | LW | 45.92 | 13-2-0 | UFC | --last rated win -25 months. |
| 16 | 17 | T.J. Dillashaw | BW | 44.71 | 11-2-0 | UFC | |
| 17 | 18 | Yoel Romero | MW | 43.19 | 10-3-0 | UFC | |
| 18 | 19 | Ben Askren | WW | 42.61 | 14-0-0 | One | --last rated win -13 months. |
| 19 | 20 | Kelvin Gastelum | MW | 42.40 | 11-3-0 | UFC | |
| 20 | 21 | Patricio Freire | FW | 41.97 | 15-4-0 | Bell | |
| 21 | 22 | Kevin Belingon | BW | 41.94 | 9-3-0 | One | |
| 23 | 23 | Eddie Alvarez | LW | 40.15 | 25-6-0 | UFC | --last rated win -12 months. |
| 24 | 24 | Henry Cejudo | FL | 39.57 | 7-2-0 | UFC | |
| 26 | 25 | Luke Rockhold | MW | 38.33 | 14-3-0 | UFC | --last rated win -15 months. |
| 27 | 26 | Cain Velasquez | HW | 37.69 | 12-2-0 | UFC | --last rated win -29 months. |
| 28 | 27 | Demetrious Johnson | FL | 34.55 | 18-3-1 | UFC | --last rated win -14 months. |
| 29 | 28 | Bibiano Fernandes | BW | 33.77 | 19-2-0 | One | |
| 30 | 29 | Douglas Lima | WW | 33.44 | 15-3-0 | Bell | |
| 35 | 30 | Alexander Volkanovski | FW | 33.24 | 10-0-0 | UFC | Beat #248 Chad Mendes |
| 44 | 31 | Tomasz Narkun | LH | 32.62 | 11-2-0 | KSW | Beat #91 Mamed Khalidov |
| 31 | 32 | Santiago Ponzinibbio | WW | 32.55 | 9-1-0 | UFC | |
| 32 | 33 | Francis Ngannou | HW | 32.15 | 6-2-0 | UFC | |
| 42 | 34 | Lance Palmer | FW | 31.66 | 13-3-0 | Prof | Beat #242 Steven Siler |
| 33 | 35 | Marlon Moraes | BW | 31.49 | 16-3-0 | UFC | |
| 34 | 36 | Ronaldo Souza | MW | 31.46 | 22-5-0 | UFC | |
| 36 | 37 | Fabricio Werdum | HW | 30.91 | 23-8-1 | UFC | --last rated win -13 months. |
| 40 | 38 | Raphael Assuncao | BW | 30.26 | 22-5-0 | UFC | |
| 38 | 39 | Anthony Johnson | LH | 30.17 | 21-6-0 | UFC | --last rated win -28 months. |
| 39 | 40 | Robbie Lawler | WW | 29.97 | 29-12-0 | UFC | --last rated win -17 months. |
| 66 | 41 | Michael Chandler | LW | 29.22 | 15-4-0 | Bell | Beat #79 Brent Primus |
| 43 | 42 | Leon Edwards | WW | 28.94 | 10-2-0 | UFC | |
| 46 | 43 | Derrick Lewis | HW | 28.23 | 10-4-0 | UFC | |
| 45 | 44 | Vitaly Minakov | HW | 28.14 | 13-0-0 | FNG | --last rated win -12 months. |
| 47 | 45 | Vadim Nemkov | LH | 28.12 | 5-2-0 | Bell | |
| 48 | 46 | Jon Fitch | WW | 28.10 | 30-6-1 | Bell | |
| 49 | 47 | Alexander Volkov | HW | 27.93 | 18-6-0 | UFC | |
| 51 | 48 | Akhmed Aliev | LW | 27.89 | 10-1-0 | FNG | |
| 25 | 49 | Brian Ortega | FW | 27.58 | 7-1-0 | UFC | Lost to #8 Max Holloway |
| 50 | 50 | Michael Bisping | MW | 27.50 | 24-9-0 | UFC | --last rated win -26 months. |
| 52 | 51 | Aljamain Sterling | BW | 27.44 | 10-3-0 | UFC | |
| 182 | 52 | Al Iaquinta | LW | 26.97 | 9-2-0 | UFC | Beat #41 Kevin Lee |
| 54 | 53 | Frankie Edgar | FW | 26.72 | 17-6-1 | UFC | |
| 53 | 54 | Rafael dos Anjos | WW | 26.60 | 20-9-0 | UFC | --last rated win -12 months. |
| 94 | 55 | Mateusz Gamrot | FW | 26.32 | 9-0-0 | KSW | Beat #100 Kleber Koike Erbst |
| 55 | 56 | Jose Aldo | FW | 26.23 | 21-4-0 | UFC | |
| 57 | 57 | Ramazan Emeev | WW | 25.43 | 11-1-0 | UFC | |
| 58 | 58 | Rustam Khabilov | LW | 25.36 | 12-3-0 | UFC | |
| 59 | 59 | Alexander Hernandez | LW | 25.32 | 4-0-0 | UFC | |
| 60 | 60 | Cheick Kongo | HW | 25.26 | 27-10-2 | Bell | |
| 61 | 61 | Alistair Overeem | HW | 24.96 | 37-17-0 | UFC | --last rated win -17 months. |
| 62 | 62 | Michel Prazeres | WW | 24.84 | 11-2-0 | UFC | |
| 78 | 63 | Alexey Kunchenko | WW | 24.76 | 10-0-0 | UFC | Beat #509 Yushin Okami |
| 64 | 64 | Eduard Folayang | LW | 24.49 | 9-5-0 | One | |
| 65 | 65 | Phil Davis | LH | 24.39 | 14-5-0 | Bell | |
| 67 | 66 | Ali Bagov | LW | 24.24 | 11-7-0 | ACB | |
| 89 | 67 | Junior dos Santos | HW | 24.23 | 14-4-0 | UFC | Beat #310 Tai Tuivasa |
| 68 | 68 | Curtis Blaydes | HW | 24.19 | 6-2-0 | UFC | |
| 63 | 69 | Nate Diaz | WW | 24.10 | 17-11-0 | UFC | --last rated win -33 months. |
| 71 | 70 | John Lineker | BW | 23.99 | 10-2-0 | UFC | |
| 254 | 71 | Gunnar Nelson | WW | 23.91 | 11-3-0 | UFC | Beat #56 Alex Oliveira |
| 69 | 72 | Stephen Thompson | WW | 23.85 | 10-3-1 | UFC | --last rated win -13 months. |
| 72 | 73 | Mirko Filipovic | HW | 23.73 | 33-11-2 | Rizi | |
| 70 | 74 | Dominick Cruz | BW | 23.70 | 16-2-0 | UFC | --last rated win -30 months. |
| 74 | 75 | Andre Harrison | FW | 23.63 | 13-1-0 | Prof | |
| 75 | 76 | Rory MacDonald | MW | 23.58 | 15-5-0 | Bell | |
| 73 | 77 | Shintaro Ishiwatari | BW | 23.42 | 18-6-3 | Rizi | --last rated win -12 months. |
| 76 | 78 | Pat Curran | FW | 23.33 | 13-4-0 | Bell | --last rated win -14 months. |
| 77 | 79 | Darren Till | WW | 23.29 | 5-1-1 | UFC | |
| 80 | 80 | Senzo Ikeda | FL | 22.98 | 9-3-1 | Panc | |
| 81 | 81 | Zabit Magomedsharipov | FW | 22.88 | 7-0-0 | UFC | |
| 82 | 82 | Patricky Freire | LW | 22.84 | 12-7-0 | Bell | |
| 83 | 83 | Ryogo Takahashi | FW | 22.48 | 9-3-0 | Shoo | --last rated win -14 months. |
| 84 | 84 | Israel Adesanya | MW | 22.42 | 4-0-0 | UFC | |
| 85 | 85 | Justin Gaethje | LW | 22.34 | 13-2-0 | UFC | |
| 86 | 86 | David Teymur | LW | 22.33 | 5-0-0 | UFC | |
| 88 | 87 | James Nakashima | WW | 22.18 | 7-0-0 | One | |
| 90 | 88 | Elizeu Zaleski dos Santos | WW | 22.14 | 9-2-0 | UFC | |
| 87 | 89 | Chris Weidman | MW | 22.06 | 11-4-0 | UFC | --last rated win -17 months. |
| 92 | 90 | Jared Cannonier | MW | 21.84 | 4-4-0 | UFC | |
| 93 | 91 | Deiveson Figueiredo | FL | 21.77 | 5-0-0 | UFC | |
| 37 | 92 | Darrion Caldwell | BW | 21.76 | 8-2-0 | Rizi | Lost to #22 Kyoji Horiguchi |
| 102 | 93 | Thiago 'Marreta' Santos | LH | 21.63 | 11-4-0 | UFC | Beat #1512 Jimi Manuwa |
| 95 | 94 | Anthony 'Lionheart' Smith | LH | 21.59 | 18-7-0 | UFC | |
| 96 | 95 | Islam Makhachev | LW | 21.54 | 9-1-0 | UFC | |
| 97 | 96 | David Branch | MW | 21.52 | 14-5-0 | UFC | |
| 98 | 97 | Donald Cerrone | LW | 21.47 | 31-11-0 | UFC | |
| 99 | 98 | Jussier da Silva | FL | 21.40 | 12-5-0 | UFC | |
| 101 | 99 | Yuki Motoya | BW | 21.29 | 16-2-0 | Rizi | Beat #2853 Justin Scoggins |
| 159 | 100 | Lyoto Machida | MW | 21.22 | 24-8-0 | Bell | Beat #183 Rafael Carvalho |