| Datum | Země | Název, adresa | Pořadatel |
|---|---|---|---|
| 2.5.1998 |  | EC 18 - Extreme Challenge 18 Davenport, Iowa, United States, United States | Extreme Challenge |
| 2.5.1998 | UCC - Universal Challenge Championship | Universal Challenge Championship |
| Datum | Země | Název, adresa | Pořadatel |
|---|---|---|---|
| 2.5.1998 | | EC 18 - Extreme Challenge 18 Davenport, Iowa, United States, United States | Extreme Challenge |
| 2.5.1998 | UCC - Universal Challenge Championship | Universal Challenge Championship |