These ratings are based on the Elo rating system designed for chess and other zero sum games.
There are two variables set for this implementation of the Elo system;
The starting elo is the initial rating that a new player gets when they enter the system. The K factor is the maximum rating change per game.
This system works by calculating the expected outcome of a contest based on the current rating of the two fighters and then comparing this to the actual outcome. Once this has been done, a number of points will be taken from the loser's rating and added to the winner's rating. The closer to the expected outcome, the fewer points that are allocated.
New points only enter the system when a new fighter has their first fight and they only leave the system when a fighter retires.
These ratings exclude fighters who have not fought within the last 18 months.
For more information on the elo rating system, you can read the Wikipedia page on the topic.
|Currently active and at their highest rating.|
|Currently active but not at their highest rating.|
Please be aware that these ratings are calculated pound-for-pound, not per weight class. Fighters who recently switched weight class have ratings based primarily on having competed in their previous class and are not adjusted to their new class.
|#||Name||Rating||Record||Promotion||Gender||Peak Date||Weight Class|
|1||Georges St. Pierre Rush||2068.5||26-2||Ultimate Fighting Championship||Male||04 Nov 2017||170|
|2||Jon Jones Bones||2061.5||25-1 (1)||Ultimate Fighting Championship||Male||06 Jul 2019||205|
|3||Daniel Cormier DC||2031.6||22-2 (1)||Ultimate Fighting Championship||Male||03 Nov 2018||265|
|4||Khabib Nurmagomedov The Eagle||2007.9||28-0||Ultimate Fighting Championship||Male||07 Sep 2019||155|
|5||Anderson Silva The Spider||1983.9||34-10 (1)||Ultimate Fighting Championship||Male||13 Oct 2012||185|
|6||Max Holloway Blessed||1973.5||22-4||Ultimate Fighting Championship||Male||08 Dec 2018||145, 155|
|7||Tony Ferguson El Cucuy||1968.8||28-3||Ultimate Fighting Championship||Male||08 Jun 2019||155|
|8||Tyron Woodley The Chosen One||1957||21-4-1||Ultimate Fighting Championship||Male||08 Sep 2018||170|
|9||Ryan Bader Darth||1955.5||30-5 (1)||Bellator MMA||Male||26 Jan 2019||265|
|10||Dustin Poirier The Diamond||1948.4||28-6 (1)||Ultimate Fighting Championship||Male||13 Apr 2019||155|
|11||Gegard Mousasi The Dreamcatcher||1947.4||46-8-1||Bellator MMA||Male||29 Sep 2018||185|
|12||Fedor Emelianenko The Last Emperor||1945.1||40-6 (1)||Bellator MMA||Male||07 Nov 2009||265|
|13||Stipe Miocic||1931.5||24-3||Ultimate Fighting Championship||Male||17 Aug 2019||265|
|14||Patricio Pitbull||1931.5||30-4||Bellator MMA||Male||28 Sep 2019||145, 155|
|15||Kamaru Usman The Nigerian Nightmare||1927.7||17-1||Ultimate Fighting Championship||Male||02 Mar 2019||170|
|16||Demetrious Johnson Mighty Mouse||1922||32-3-1||ONE Championship||Male||07 Oct 2017||125, 135|
|17||Donald Cerrone Cowboy||1919.1||36-13 (1)||Ultimate Fighting Championship||Male||10 Dec 2016||155, 170|
|18||Rafael dos Anjos RDA||1918||28-12||Ultimate Fighting Championship||Male||19 Dec 2015||170|
|19||José Aldo Junior||1908.7||28-5||Ultimate Fighting Championship||Male||25 Oct 2014||145|
|20||Anthony Johnson Rumble||1898.3||22-6||Ultimate Fighting Championship||Male||20 Aug 2016||170, 205|
|21||Robbie Lawler Ruthless||1898.1||29-14 (1)||Ultimate Fighting Championship||Male||02 Jan 2016||170|
|22||Kyoji Horiguchi||1897||30-3||RIZIN Fighting Federation||Male||14 Jun 2019||125, 135|
|23||Eddie Alvarez The Underground King||1896.8||30-7 (1)||ONE Championship||Male||07 Jul 2016||155, 170|
|24||Israel Adesanya The Last Stylebender||1894.7||18-1||Ultimate Fighting Championship||Male||05 Oct 2019||185|
|25||Robert Whittaker The Reaper||1893.5||20-5||Ultimate Fighting Championship||Male||09 Jun 2018||185|