| Ultimate Fighting Championship ( UFC ) |
ufc.com |
| MMA Fighting |
mmafighting.com |
| International Boxing Organization ( IBO ) |
iboboxing.com |
| World Boxing Association ( WBA ) |
wbaboxing.com |
| Universal Boxing Organization ( UBO ) |
uboboxing.com |
| World Series of Boxing |
worldseriesboxing.com |
| World Karate Federation |
wkf.net |
| WTF World Taekwondo Federation |
worldtaekwondo.org |
| International Judo Federation |
ijf.org |
| World Wrestling Entertainment ( WWE ) |
wwe.com |
