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|Years in sports|
2001 in sports describes the year's events in world sport.
The following is a list of major noteworthy MMA events during 2001 in chronological order.
|Date||Event||Alternate Name/s||Location||Attendance||PPV Buyrate||Notes|
|February 23||UFC 30: Battle on the Boardwalk||N/A||Atlantic City, New Jersey, USA||N/A||N/A||First UFC event under ownership of Zuffa.|
|March 25||Pride 13 - Collision Course||N/A||Saitama, Japan||N/A||N/A||This was the first Pride event allowing knee strikes to the head of someone in the "four-points" position.|
|May 4||UFC 31: Locked and Loaded||N/A||Atlantic City, New Jersey, USA||N/A||N/A||UFC rule change, weight classes redefined to present standard. Introduces middleweight division.|
|May 27||Pride 14 - Clash of the Titans||N/A||Yokohama, Japan||N/A||N/A||N/A|
|June 29||UFC 32: Showdown in the Meadowlands||N/A||East Rutherford, New Jersey, USA||12,500||N/A||This event marked the last appearance of longtime commentator Jeff Blatnick.|
|July 29||Pride 15: Raging Rumble||N/A||Saitama, Japan||27,323||N/A||N/A|
|September 24||Pride 16: Beasts From the East||N/A||Osaka, Japan||N/A||N/A||This event featured the return of Don Frye in his first fight since June 1997.|
|September 28||UFC 33: Victory in Vegas||N/A||Las Vegas, Nevada, USA||9,500||75,000||This was the first event to be sanctioned by the Nevada State Athletic Commission.|
|November 2||UFC 34: High Voltage||N/A||Las Vegas, Nevada, USA||9,000||65,000||N/A|
|November 3||Pride 17: Championship Chaos||N/A||Tokyo, Japan||N/A||N/A||This event featured the first two Pride title fights, for heavyweight and middleweight champions.|
|December 23||Pride 18: Cold Fury 2||N/A||Fukuoka, Japan||N/A||N/A||N/A|