Rankings by organisation

Ultimate Fighting Championship (UFC) 818 events Shooto 655 events King of the Cage 605 events Deep 507 events Pancrase 429 events One Championship 414 events Ultimate Combat Experience 332 events Bellator MMA 316 events International Mixed Martial Arts Federation 312 events The Ultimate Fighter 296 events Cage Warriors 285 events Absolute Championship Akhmat 279 events M-1 Global 274 events Shooto Europe 248 events Gladiator Challenge 246 events Legacy Fighting Alliance (LFA) 238 events Jungle Fight 235 events Combat Night (Florida) 206 events National Fighting Championship 202 events Union of Mixed Martial Arts 201 events Zst 196 events Rage in the Cage 186 events Extreme Challenge 185 events Xtreme Fighting League (Oklahoma) 182 events Alaska Fighting Championship 182 events Tuff-N-Uff 166 events Fight Nights Global 159 events Cage Fury Fighting Championships 159 events Shamrock Fighting Championships 156 events Fury Fighting Championship 156 events Modern Fighting Pankration 153 events Jue Cheng King 153 events Combate Global 150 events Full Contact Fighting Federation 147 events Brutaal Fight Night 146 events Sparta Sports and Entertainment (formerly Sparta Combat League) 143 events Extreme Fighting Championship (Africa) 140 events Shooto Brazil 140 events Octagon Promotion 139 events World Ertaymash Federation 135 events Hardcore Fighting Championships (Russia) 135 events Rings 131 events North American Allied Fight Series 130 events Professional Fighters League 129 events Hardrock MMA 129 events Konfrontacja Sztuk Walki 127 events Ring of Combat 126 events Naiza Fighter Championship 125 events 559 Fights 125 events Oplot Challenge 124 events Oktagon MMA 121 events LUX Fight League 120 events International Sport Combat Federation 119 events Fight Club OC 116 events Panama Fight League 116 events Gladiator (Japan) 113 events SteelFist Fight Night 112 events One Pride MMA 111 events Super Fight League 110 events Iowa Challenge 108 events