|Height||6' 4" (193 cm)|
|Style||Kickboxing, Brazilian Jiu-Jitsu|
|Birth Date||February 5, 1976|
|Fighting Out Of||Weesp, Holland|
|Record||8 - 6 - 0 (Win – Loss – Draw)|
|Loss||Patrick Barry||TKO (Punches)||UFC 104: Machida vs. Shogun||10/24/2009||2||2:30||Won Fight of the Night|
|Loss||Cheick Kongo||TKO (Punches)||UFC 97: Redemption||4/18/2009||2||2:29|
|Win||Mike Wessel||TKO (Punches)||UFC 92: The Ultimate 2008||12/27/2008||2||2:09|
|Win||Eddie Sanchez||TKO (Punches)||UFC 85: Bedlam||6/7/2008||2||4:15|
|Win||Colin Robinson||TKO (Punch)||UFC 80: Rapid Fire||1/19/2008||1||0:17|
|Loss||Frank Mir||Submission (Kimura)||UFC 74: Respect||8/25/2007||1||1:17|
|Loss||Justin McCully||Decision (Unanimous)||UFC Fight Night 9: Stevenson vs. Guillard||4/5/2007||3||5:00|
|Win||Sherman Pendergarst||KO (Punch)||UFC 65: Bad Intentions||11/18/2006||1||3:15|
|Win||Ibragim Magomedov||TKO (Corner Stoppage)||Bushido Europe: Rotterdam Rumble||10/9/2005||2||2:01|
|Win||Wes Sims||Submission (Keylock)||ROTR 6: Rumble on the Rock 6||11/20/2004||1||4:24|
|Loss||Claudineney Kozan||Decision (Unanimous)||K-1 MMA: ROMANEX||5/22/2004||2||5:00|
|Loss||Grzegorz Jakubowski||Decision||LRDC 7: La Resa Dei Conti 7||12/5/2003||2||5:00|
|Win||Will Elworthy||Submission (Rear Naked Choke)||LRDC 7: La Resa Dei Conti 7||12/5/2003||1||N/A|
|Win||Peter Verschuren||TKO (Cut)||Rings Holland: Heroes Live Forever||1/28/2001||1||3:05|
Hardonk started off his mixed martial arts career fighting in the Netherlands and Italy, as well as Japan and Hawaii. His final two wins prior to joining the UFC were against [The Ultimate Fighter 10: Heavyweights]] contestant Wes Sims' and Ibragim Magomedov.
His next fight was at UFC Fight Night 9: Stevenson vs. Guillard against Justin McCully, a late-notice replacement for Hardonk's original opponent, former UFC Heavyweight champion Frank Mir, as he had to drop out due to a shoulder injury. Hardonk lost to McCully via unanimous decision.
Hardonk then fought Frank Mir at UFC 74: Respect on August 25, 2007. Hardonk lost due to a kimura lock early in the first round. He then bounced back against Colin Robinson at UFC 80: Rapid Fire in January 2008, winning by TKO 17 seconds into the first round. The win over Robinson began a three-fight UFC win streak that included wins over Eddie Sanchez and Mike Wessel.
Hadonk returned at UFC 104: Machida vs. Shogun in October 2009 for his final bout, taking on former training partner Patrick Barry. Barry won the Fight of the Night via TKO (Strikes) in the second round.
In August 2010, Hardonk announced that he would be officially retiring from MMA and that he would become a full-time trainer at his gym "Dynamix Martial Arts" located in Santa Monica, California.
Ranks and Titles
- Finalist K-1 Scandinavia
- Blue Belt in Rickson Gracie Jiu-Jitsu.