Amateurs are given a 1.9 LB weight allowance
Pros are given a 1.0 LB weight allowance
Fighters must be within 5-7 LB within their opponent.

MINI FLYWEIGHT: Up to and including 105 pounds.

LIGHT FLYWEIGHT: Over 105 pounds to 108 pounds.

FLYWEIGHT: Over 108 pounds to 112 pounds.

SUPER FLYWEIGHT: Over 112 pounds to 115 pounds.

BANTAMWEIGHT: Over 115 pounds to 118 pounds.

SUPER BANTAMWEIGHT: Over 118 pounds to 122 pounds.

FEATHERWEIGHT: Over 122 pounds to 126 pounds.

SUPER FEATHERWEIGHT: Over 126 pounds to 130 pounds.

LIGHTWEIGHT: Over 130 pounds to 135 pounds.

SUPER LIGHTWEIGHT: Over 135 pounds to 140 pounds.

WELTERWEIGHT: Over 140 pounds to 147 pounds.

SUPER WELTERWEIGHT: Over 147 pounds to 154 pounds.

MIDDLEWEIGHT: Over 154 pounds to 160 pounds.

SUPER MIDDLEWEIGHT: Over 160 pounds to 168 pounds.

LIGHT HEAVYWEIGHT: Over 168 pounds to 175 pounds.

CRUISERWEIGHT: Over 175 pounds to 200 pounds.

HEAVYWEIGHT: Over 200 pounds.