Rumble on the Rock 4 | | align=center| 3 | align=center| 2:35 | Honolulu, Hawaii, United States | |- | Draw | align=center| 5–1–1 | Caol Uno | Draw (split) | UFC 41 | | align=center| 5 | align=center| 5:00 | Atlantic City, New Jersey, United States | |- | Win | align=center| 5–1 | Matt Serra | Decision (unanimous) | UFC 39 | | align=center| 3 | align=center| 5:00 | Uncasville, Connecticut, United States | |- | Win | align=center| 4–1 | Paul Creighton | TKO (punches) | UFC 37 | | align=center| 2 | align=center| 3:23 | Bossier City, Louisiana, United States | |- | Loss | align=center| 3–1 | Jens Pulver | Decision (majority) | UFC 35 | | align=center| 5 | align=center| 5:00 | Uncasville, Connecticut, United States | |- | Win | align=center| 3–0 | Caol Uno | KO (punches) | UFC 34 | | align=center| 1 | align=center| 0:11 | Las Vegas, Nevada, United States | |- | Win | align=center| 2–0 | Din Thomas | KO (knee and punches) | UFC 32 | | align=center| 1 | align=center| 2:42 | East Rutherford, New Jersey, United States | |- | Win | align=center| 1–0 | Joey Gilbert | TKO (punches) | UFC 31 | | align=center| 1 | align=center| 4:57 | Atlantic City, New Jersey, United States | Pay-per-view bouts Filmography Film and television Video games See also List of UFC champions List of Brazilian Jiu-Jitsu practitioners Notes References External links BJJ Heroes BJ Penn Profile BJ Penn Quotes |- |- 1978 births Living people American male mixed martial artists American people of Irish descent American practitioners of Brazilian jiu-jitsu American submission wrestlers American sportspeople in doping cases American sportspeople of Korean descent Doping cases in mixed martial arts Mixed martial artists from Hawaii People awarded a black belt in Brazilian jiu-jitsu Lightweight mixed martial artists Welterweight mixed martial artists Ultimate Fighting Championship champions American male writers Mixed martial artists utilizing boxing Mixed martial artists utilizing Brazilian jiu-jitsu World Brazilian Jiu-Jitsu Championship medalists Ultimate Fighting Championship male fighters Brazilian jiu-jitsu practitioners who have competed in MMA (men)