| Datum | Země | Název, adresa | Pořadatel |
|---|---|---|---|
| 4.5.2018 |  | Baikal Fighting Championship - BFC 2: Artur vs. Sever Trud Arena, Irkutsk, Irkutsk, Russia | Baikal Fighting Championship |
| 4.5.2018 |  | Bushido Lithuania - MMA Bushido 74 Siemens Arena, Vilnius, Lithuania | Bushido Lithuania |
| 4.5.2018 |  | CES MMA - CES MMA NY 1 The Space at Westbury Theater, Westbury, New York, United States | Classic Entertainment and Sports (CES MMA) |
| 4.5.2018 |  | Combate Extremo - Diaz vs. Bento Nuevo Leon Independiente Gymnasium, Monterrey, Nuevo Leon, Mexico | Combate Extremo (Mexico) |
| 4.5.2018 | | FSF - Front Street Fights 17 CenturyLink Arena, Boise, Idaho, United States | Front Street Fights |
| 4.5.2018 |  | HG - Heroes Gate 20 Aréna Sparta Podvinný Mlýn, Prague, Czech Republic | Heroes Gate |
| 4.5.2018 | | Invicta FC 29 - Kaufman vs. Lehner Kansas City Scottish Rite Temple, Kansas City, Missouri, United States | Invicta Fighting Championships |
| 4.5.2018 | | KOTC - Under Siege Viejas Casino and Resort, Alpine, California, United States | King of the Cage |
| 4.5.2018 | | LFA 39 - Heinisch vs. Checco Dobson Arena, Vail, Colorado, United States | Legacy Fighting Alliance (LFA) |
| 4.5.2018 |  | LIF - Leao Impacto Fighters 4 Toca do Rato Club, Coxim, Mato Grosso do Sul, Brazil | Leao Impacto Fighters |
| 4.5.2018 |  | MMA Gibraltar - Rock Under Siege 5 Tercentenary Sports Hall, Gibraltar | MMA Gibraltar |
| 4.5.2018 | | Professional Combat Sambo - The Day of Victory in the Great Patriotic War FOK "Sparta", Uren, Nizhniy Novgorod, Russia | Professional Combat Sambo |
| 4.5.2018 | | RF - Reality Fighting Mohegan Sun Arena, Uncansville, Connecticut, United States | Reality Fighting |
| 4.5.2018 | | TFC - Total Fight Challenge Bedford Park Swanson Center, Bedford Park, Illinois, United States | Total Fight Challenge |
| 4.5.2018 |  | TKO 43 - Barriault vs. Kornberger Videotron Centre, Quebec City, Quebec, Canada | TKO Major League MMA |
| 4.5.2018 |  | WFCA 48 - Zhamaldaev vs. Khasbulaev 2 Baku Olympic Stadium, Baku, Azerbaijan | World Fighting Championship Akhmat |
| 4.5.2018 | | Xtreme Fighting Mexico - XFM 8: International Challenge Chupis Bar, Campeche, Campeche, Mexico | Xtreme Fighting Mexico |