| Datum | Země | Název, adresa | Pořadatel |
|---|---|---|---|
| 13.5.2006 |  | BATH 1 - Extreme Gladiator Challenge Winterset, Iowa, United States | Brawls at the Hall |
| 13.5.2006 |  | BS - Baltic Storm 1 Gedania Hall, Gdansk, Pomeranian Voivodeship, Poland | Baltic Storm |
| 13.5.2006 |  | Clash of the Champions 4 - Showdown Balkawde Indoor Stadium, Nasik, Maharashtra, India | Clash of the Champions |
| 13.5.2006 | | CZ 16 - In the Cage 2 Portsmouth, New Hampshire, United States, United States | Combat Zone |
| 13.5.2006 | Dawsu - Fight Event | Dawsu Fight Event | |
| 13.5.2006 |  | FCT - Fight Club Tournament 2 Serejinho Gymnasium, Taguatinga, Federal District, Brazil | Fight Club Tournament |
| 13.5.2006 |  | FF 18 - Fight Festival 18 Helsinki, Finland, Finland | Fight Festival |
| 13.5.2006 | | ICFO 1 - Stockton Stockton, California, United States | International Cage Fighting Organization |
| 13.5.2006 | | ISCF - Xtreme Freestyle Fighting Columbus, Georgia, United States | International Sport Combat Federation |
| 13.5.2006 |  | It's Showtime - K-1 World GP Amsterdam, Holland, Netherlands | It's Showtime |
| 13.5.2006 | | KFC - Kentucky Fighting Challenge 13 National Guard ArmoryLexington, Kentucky, United States | Kentucky Fighting Challenge |
| 13.5.2006 | | KOTC - Predator Apache Gold Casino, Globe, Arizona, United States | King of the Cage |
| 13.5.2006 |  | MARS - MARS World Grand Prix Chiba, Japan, Japan | MARS |
| 13.5.2006 | | MFVT - Madeira Fight Vale Tudo Social Service of Industry (SESI) Mario Amato Gymnasium, Porto Velho, Rondonia, Brazil | Madeira Fight Vale Tudo |
| 13.5.2006 |  | OC 5 - Outsider Cup 5 Masters Gym Arena, Duisburg, Germany, Germany | Outsider Cup |
| 13.5.2006 | | PFE - Phantom Fight Explosion Lima Civic CenterLima, Ohio, United States | Phantom Fight Explosion |
| 13.5.2006 | | TC 14 - Throwdown Del Mar, California, United States | Total Combat |
| 13.5.2006 |  | TOTP - Titans of the Pentagon Costa Rica, Costa Rica | Titans of the Pentagon |
| 13.5.2006 | | UCE - Round 21 - Episode 1 The StationSandy, Utah, United States | Ultimate Combat Experience |
| 13.5.2006 |  | UK-1 - Ultimate Fight Night Portsmouth, HampshireUnited Kingdom, United Kingdom | UK-1 |
| 13.5.2006 | | UT - Ultimate Throwdown Mishakawa, Indiana, United States, United States | Ultimate Throwdown |
| 13.5.2006 | | VFC 13 - Redemption North Platte, Nebraska, United States | Victory Fighting Championship |
| 13.5.2006 | | WCF - West Coast Fighters Portland Metropolitan Expo Center, Portland, Oregon, United States | West Coast Fighters |
| 13.5.2006 | | WFC - Supremacy Cheyenne, Wyoming, United States | Worldwide Fighting Championship |
| 13.5.2006 | | WPCF 2 - War Party Cage Fighting 2 Marshalltown, Iowa, United States | War Party Cage Fighting |
| 13.5.2006 |  | WUFC - World Championships 2 Midoes, Portugal, Portugal | World Ultimate Full Contact |