Pride 17: Championship Chaos was a mixed martial arts event held by the Pride Fighting Championships. It took place at the Tokyo Dome in Tokyo, Japan on November 3, 2001. This event also saw the crowning of the first Pride FC Heavyweight and Middleweight champions.

Renzo Gracie vs. Michiyoshi Ohara
Gracie defeated Ohara by Unanimous Decision (5:00 Third Round)

Quinton Jackson vs. Yuki Ishikawa
Jackson defeated Ishikawa by KO (1:52 First Round)

Dan Henderson vs. Murilo Rua
Henderson defeated Rua by Split Decision (5:00 Third Round)

Masaaki Satake vs. Semmy Schilt
Schilt defeated Satake by TKO (Strikes) (2:18 First Round)

Mario Sperry vs. Igor Vovchanchyn
Sperry defeated Vovchanchyn by Submission (Arm-Triangle Choke) (2:52 First Round)

Tom Erikson vs. Matt Skelton
Erikson defeated Skelton by Submission (Front Strangle Choke) (1:51 First Round). This fight was fought under special PRIDE vs. K-1 Rules, 5 rounds of 3 minutes

Mirko Filipović vs. Nobuhiko Takada
This fight was declared a draw (3:00 Fifth Round). This fight was fought under special PRIDE vs. K-1 Rules, 5 rounds of 3 minutes

Heath Herring vs. Antonio Rodrigo Nogueira
Nogueira defeated Herring by Unanimous Decision (5:00 Third Round) to become the first Pride FC Heavyweight champion.

Kazushi Sakuraba vs. Wanderlei Silva
Silva defeated Sakuraba by TKO (Doctor Stoppage) (10:00 First Round) to become the first Pride FC Middleweight champion. Sakuraba suffered a broken collar bone after being slammed by Silva.