Ill. Admin. Code tit. 68, § 1370.720
a) In mixed martial arts contests, contestants shall be classified under the following classifications:
| Weight Class | Weights | Allowances | |
| 1) | Straw Weight | up to 115 pounds | 3 pounds |
| 2) | Flyweight | over 115 to 125 pounds | 3 pounds |
| 3) | Bantamweight | over 125 to 135 pounds | 3 pounds |
| 4) | Featherweight | over 135 to 145 pounds | 5 pounds |
| 5) | Lightweight | over 145 to 155 pounds | 5 pounds |
| 6) | Welterweight | over 155 to 170 pounds | 5 pounds |
| 7) | Middleweight | over 170 to 185 pounds | 7 pounds |
| 8) | Light Heavyweight | over 185 to 205 pounds | 7 pounds |
| 9) | Heavyweight | over 205 to 265 pounds | 7 pounds |
| 10) | Super Heavyweight | over 265 pounds |