OAR 230-130-0680: Weights and Weight Classes

(1) Professional and amateur Muay Thai: Weight classes. Except with the approval of the Administrator, the weight classes for competitors, bouts or exhibitions of Muay Thai are as follows: Weight Class — Weight — Allowance (a) Mini Flyweight — 100 to 105 lbs. — 3 lbs. (b) Light Flyweight — Over 105 to 108 lbs. — 3 lbs. (c) Flyweight — Over 108 to 112 lbs. — 3 lbs. (d) Super Flyweight — Over 112 to 115 lbs. — 3 lbs. (e) Bantamweight — Over 115 to 118 lbs. — 3 lbs. (f) Super Bantamweight — Over 118 to 122 lbs. — 5 lbs. (g) Featherweight — Over 122 to 126 lbs. — 5 lbs. (h) Super Featherweight — Over 126 to 130 lbs. — 7 lbs. (i) Lightweight — Over 130 to 135 lbs. — 7 lbs. (j) Super Lightweight — Over 135 to 140 lbs. — 7 lbs. (k) Welterweight — Over 140 to 147 lbs. — 7 lbs. (l) Super Welterweight — Over 147 to 154 lbs. — 7 lbs. (m) Middleweight — Over 154 to 160 lbs. — 7 lbs. (n) Super Middleweight — Over 160 to 168 lbs. — 9 lbs. (o) Light Heavyweight — Over 168 to 175 lbs. — 9 lbs. (p) Cruiserweight — Over 175 to 190 lbs. — 12 lbs. (q) Super Cruiserweight — Over 190 to 210 lbs. — 12 lbs. (r) Heavyweight — Over 210 to 230 lbs. — No Limit (s) Superheavyweight — Over 230 lbs. — No Limit (2) No bout shall be scheduled, and no competitor shall participate in a Muay Thai/ Kickboxing bout where the weight difference exceeds the allowance shown in the schedule, without approval of the Administrator. In the event competitors are in different weight classes, the weight difference allowance shall be that of the lower class.