| Datum | Země | Název, adresa | Pořadatel |
|---|---|---|---|
| 30.5.1998 |  | CC 4 - Chicago Challenge 4 Chicago, Illinois, United States | Chicago Challenge |
| 30.5.1998 |  | IFC 7 - Cage Combat Kahnawake Sports Complex, Kahnawake, Quebec, Canada | International Fighting Championship |
| 30.5.1998 | | WVF - Orlando 1 Orlando, Florida, United States | World Vale Tudo Federation |
| 30.5.1998 | | WVT - Wisconsin Vale Tudo Eagles ClubMilwaukee, Wisconsin, United States | Wisconsin Vale Tudo |