Ohio Administrative Code|Rule 3773-2-01 | Weigh-in and weights and classes.

                                                
(A) The commission shall promulgate rules and regulations establishing classes of boxers, which classes shall be based upon weights. All contests or exhibitions shall take place only between boxers who are within the same weight class as defined by the commission, unless otherwise approved by the commission.
The allowable weight differences shall be between weight classes. Example a contestant one hundred fourteen pounds, super flyweight may compete against an opponent one hundred seventeen pounds, bantamweight. There is no more than a three pound difference between weight classes.
Weight Class
Weights
Allowed Weight differences
Glove Size
Mini Flyweight
up to 105 lbs
not more than 3 lbs
8 oz
Light Flyweight
106 to 108 lbs
not more than 3 lbs
8 oz
Flyweight
108 to 112 lbs
not more than 3 lbs
8 oz
Super Flyweight
113 to 115 lbs
not more than 3 lbs
8 oz
Bantamweight
116 to 118 lbs
not more than 3 lbs
8 oz
Super Bantamweight
119 to 122 lbs
not more than 4 lbs
8 oz
Featherweight
123 to 126 lbs
not more than 4 lbs
8 oz
Super Featherweight
127 to 130 lbs
not more than 4 lbs
8 oz
Lightweight
131 to 135 lbs
not more than 5 lbs
8 oz
Super Lightweight
136 to 140 lbs
not more than 5 lbs
8 oz
Welterweight
141 to 147 lbs
not more than 7 lbs
8 oz
Super Welterweight
148 to 154 lbs
not more than 7 lbs
10 oz
Middleweight
155 to 160 lbs
not more than 7 lbs
10 oz
Super Middleweight
161 to 168 lbs
not more than 7 lbs
10 oz
Light Heavyweight
169 to 175 lbs
not more than 7 lbs
10 oz
Cruiserweight
176 to 200 lbs
not more than 12 lbs
10 oz
Heavyweight
Over 201 lbs
no limit
10 oz
(B) The contestant shall not exceed the weight specified on the contestant/promoter contract. If a contestant exceeds the weight specified in the contestant/promoter contract, the commission shall cancel the contest unless the contestant:
(1) Loses the weight exceeded in the contestant/promoter contract. A contestant weighing one hundred forty-seven pounds or less may not lose more than two pounds and a contestant over one hundred forty-seven pounds may not lose more than three pounds of their weight and this weight loss must occur within a one hour period. There are no restrictions to the number of times a contestant may attempt to re-weigh within the prescribed time period. This does not apply to next day weigh-in. There may be no losing weight after weighing in.
(2) Renegotiates the contestant/promoter contract, provided both contestants are within the same weight class or within the permitted weight differences between weight classes.
(C) Contestants who weigh-in the day prior to the scheduled event may be required to re-weigh  the day of the event. Contestants weighing one hundred forty-seven pounds and lower shall not exceed the weight of the previous day weigh-in by more than  eight pounds. A contestant weighing more than one hundred forty-seven pounds shall not exceed the weight of the previous day weigh-in by more than ten pounds.
(D) The scale used for the weigh-ins shall be provided by the athletic commission. When authorized by the executive director or the commission the scale may be provided by the promoter.. If more than one scale is used, each contestant shall be weighed on the same scale as their opponent.
(E) Penalties for a fighter being overweight:
(1) Up to a sixty day suspension and/or a fine.
(2) Overweight by one ounce to two pounds shall be fined by paying opponent  two hundred dollars or twenty per cent of purse whichever is higher.
(3) Overweight by more than two pounds but not over four pounds shall pay  the opponent  four hundred dollars or  twenty-five per cent of purse whichever is higher.
(4) Overweight by greater than four pounds and if within the regulations for the bout to continue, shall be fined  by paying the opponent  five hundred dollars or  thirty per cent of purse whichever is higher.
(5) If the   contestant is to receive ten thousand dollars or more the opponent will receive fifty per cent and the state of Ohio will receive fifty per cent.
(6) If bout goes on no suspension will be issued for not making weight.