Weight Classes

PURPOSE: This rule establishes weight classes for professional mixed martial arts bouts. (1) The following weights and classes are hereby established for mixed martial arts bouts/contests: Weight Class LBS. Flyweights 125 lbs. & below Bantamweight 125.1 to 135 lbs. Featherweight 135.1 to 145 lbs. Lightweight 145.1 to 155 lbs. Welterweight 155.1 to 170 lbs. Middleweight 170.1 to 185 lbs. Light Heavyweight 185.1 to 205 lbs. Heavyweight 205.1 to 265 lbs. Super Heavyweight 265.1 lbs. & above (2) Contestants may only fight contestants in their own weight category unless permission is granted by the office. AUTHORITY: sections 317.001 and 317.006, RSMo 2016.* Original rule filed April 3, 2007, effective Oct. 30, 2007. Amended: Filed March 20, 2018, effective Sept. 30, 2018. *Original authority: 317.001, RSMo 1983, amended 1996, 2007 and 317.006, RSMo 1983, amended 1996, 2007.