Ralf "The Underdog" Wonnink
| First Name : | Ralf |
| Last name : | Wonnink |
| Nickname : | The Underdog |
| Weight : | 220 lbs (100 kg) |
| Record : | 1 - 3 - 0 (Wins - Losses - Draws) |
| Wins : | 1 DQ (100%) |
| Losses : |
1 Submission (Rear Naked Choke) (33.33%) 1 TKO (33.33%) 1 Submission (Armbar) (33.33%) |
| Association : | Team Hardcore |
| Match Stats | ||||||
| Result | Opponent | Method | Event Title | Date | Round | Time |
| Lost | Stefan Struve | Submission (Armbar) | KOE - Tough Is Not Enough | Oct 5, 2008 | 1 | |
| Lost | Stefan Struve | Submission (Rear Naked Choke) | BOTE - Beast of the East | Jan 26, 2008 | 1 | |
| Win | Samir Bourekba | DQ | BOTE - Beast of the East | Jan 27, 2007 | 0 | |
| Lost | Dion Staring | TKO | FF - Fighting Fist | Dec 17, 2005 | 1 | |