Organisations

OC Olympus Fight MMA Championship 1 9 2018-07-22 OG Olympus Gladiators 1 2 2013-09-08 OF Omega Championship Fight 1 1 2023-07-15 OC Omega Fight Club 1 18 2023-08-19 OC Omega MMA Championship 1 7 2022-04-23 ON Omnia Pro Box Fight Night 1 0 2011-02-05 ON On Fire Fight Night 1 10 2018-02-17 OC One Curonia 1 0 2026-06-13 OF One Day Fight 1 8 2015-08-01 OC One Kyokushin Championship 1 7 2023-04-22 OC One Legend Championship 1 12 2026-02-13 OS One Man Series 1 5 2024-04-06 ON One Punch Night 1 19 2026-04-25 OP One vs One Fighter Promotion 1 5 2018-12-15 OC Only Fight Championship 1 0 2012-02-25 OF Only Real Fights 1 2 2022-02-20 OL Only1 Fight Corporation Ltd. 1 0 2015-05-29 OM Open de Artes Marciais 1 2 2013-05-01 OM Open Dragao do Mar de MMA 1 3 2006-08-29 OC Open Fight Candeias 1 3 2016-08-13 OM Open Fight Company MMA 1 2 2015-12-19 OT Open Fight de Vale Tudo 1 0 2007-05-11 OF Open Fight Festival 1 1 2016-04-03 OS Open Fight Sport 1 1 2022-03-12 OZ Open Fight Zone 1 3 2010-11-01 ON Open Fights Night 1 1 2021-07-30 OS Open Ring Samara 1 1 2010-07-06 OC Open Vale Tudo Challenge 1 1 2003-11-15 OC Open West Siberia MMA Championship 1 1 2012-12-22 OPP Presents 1 6 2019-11-09 OC Optimus Fighting Championship 1 6 2010-04-18 OF Oradea Fight 1 1 2006-08-11 OC Orange County MMA Championships 1 4 2006-08-05 OC Orebro Cage Clash 1 0 2024-03-23 OM Organizacion Tradicional de Artes Marciales 1 2 2015-07-25 OC Oriental Honor Club 1 0 2013-09-29 OL Origin Fight League 1 8 2016-11-19 OA Original Academy 1 4 2012-04-07 OA Orion Fight Arena 1 1 2017-10-21 OC Orion Fight Championship 1 2 2023-03-19 OC Orions Cup 1 0 2007-06-16 OC Oriximina Championships 1 0 2017-09-30 Orlando City Fights 1 1 2016-01-22 ON Orlova Fight Night 1 1 2009-11-21 OM Oro Fino MMA 1 2 2014-09-13 OC Oros Fight Combat 1 9 2022-06-10 ON Oscar Night 1 3 2014-03-22 OC Osijek Challenge 1 0 2007-05-27 OS Osimas 1 5 2001-08-24 Oss Fighters 1 0 2021-07-16