What Are Boxing Weight Classes?

Boxing weight classes are divisions in the sport that group fighters based on their weight to ensure fair competition and safety in the ring. Without weight classes, smaller fighters would be at a significant disadvantage against larger opponents in terms of strength, reach, and power. By maintaining strict weight limits, boxing allows for more evenly matched and competitive fights.

There are currently 17 weight classes in men’s professional boxing, ranging from Strawweight (105 lbs) to Heavyweight (200+ lbs). Similarly, professional women’s boxing has weight classes, though they may vary slightly depending on the organization.

Boxing Weight Classes: Men’s Division

  • Strawweight: Under 105 pounds
  • Light Flyweight: 108 pounds
  • Flyweight: 112 pounds
  • Super Flyweight: 115 pounds
  • Bantamweight: 118 pounds
  • Super Bantamweight: 122 pounds
  • Featherweight: 126 pounds
  • Super Featherweight: 130 pounds
  • Lightweight: 135 pounds
  • Super Lightweight: 140 pounds
  • Welterweight: 147 pounds
  • Super Welterweight: 154 pounds
  • Middleweight: 160 pounds
  • Super Middleweight: 168 pounds
  • Light Heavyweight: 175 pounds
  • Cruiserweight: 200 pounds
  • Heavyweight: 200+ pounds

Boxing Weight Classes: Women’s Division

  • Atomweight: Less than 102 pounds
  • Strawweight: 105 pounds
  • Junior Flyweight: 108 pounds
  • Flyweight: 112 pounds
  • Junior Bantamweight: 115 pounds
  • Bantamweight: 118 pounds
  • Junior Featherweight: 122 pounds
  • Featherweight: 126 pounds
  • Junior Lightweight: 130 pounds
  • Lightweight: 135 pounds
  • Junior Welterweight: 140 pounds
  • Welterweight: 147 pounds
  • Junior Middleweight: 154 pounds
  • Middleweight: 160 pounds
  • Super Middleweight: 168 pounds
  • Light Heavyweight: 175 pounds
  • Heavyweight: 175+ pounds

Amateur Boxing Weight Classes

Amateur boxing, such as what is seen in the Olympic Games, has a different structure with fewer weight divisions. Here are the men’s and women’s weight classes used in the Olympics:

Men’s Olympic Weight Classes:

  • Flyweight: 52 kg (114.6 lbs)
  • Featherweight: 57 kg (125.6 lbs)
  • Lightweight: 63.5 kg (139.9 lbs)
  • Welterweight: 71 kg (156.5 lbs)
  • Middleweight: 80 kg (176.4 lbs)
  • Heavyweight: 92 kg (202.8 lbs)
  • Super Heavyweight: Over 92 kg (202.8+ lbs)

Women’s Olympic Weight Classes:

  • Flyweight: 50 kg (110.2 lbs)
  • Featherweight: 57 kg (125.6 lbs)
  • Lightweight: 60 kg (132.2 lbs)
  • Welterweight: 66 kg (145.5 lbs)
  • Middleweight: 75 kg (165.3 lbs)

The Weigh-In Process in Boxing

Before a boxing match, fighters must go through a weigh-in to ensure they meet the required limits for their respective weight class. The process can vary between professional and amateur boxing.

Professional Boxing Weigh-In

In professional boxing, especially for title fights, weigh-ins usually happen the day before the fight. The fighter must not exceed the upper limit of their weight class. Some organizations, like the International Boxing Federation (IBF), even require a second weigh-in on the day of the fight to ensure the fighter hasn’t gained more than 10 pounds overnight. This rule is in place to prevent extreme weight cutting.

Amateur Boxing Weigh-In

In amateur boxing, competitors have only one weigh-in, typically within 24 hours before the bout. They must be within the weight limit to compete. Unlike professional boxing, there is no allowance for significant weight gain after the weigh-in, which means fighters tend to stay closer to their natural weight.

boxing weight classes

Strategies for Making Weight in Boxing

Making weight for a fight can be a challenging process for many boxers. Fighters often aim to compete in the lowest weight class possible to gain a competitive advantage in size and strength. However, this can lead to unhealthy practices if not managed properly.

Here are some common strategies for making weight:

1. Gradual Weight Loss

Boxers often start losing weight several weeks before a fight to ensure they can make their weight class in a healthy way. This process includes reducing calorie intake while maintaining high levels of activity. It’s essential to focus on cutting body fat while retaining muscle mass.

2. Water Manipulation

One of the most common methods used by fighters to make weight is cutting water weight. This involves temporarily dehydrating the body by reducing fluid intake and sweating through activities like sauna sessions or intense cardio. Fighters must be careful, as extreme dehydration can have negative effects on performance and health.

3. Low Sodium Diet

To assist in water weight reduction, fighters often reduce their sodium intake, which helps the body shed excess water. This, combined with hydration control, can help fighters meet their weight goals.

4. Sweat-Inducing Gear

Using sweat suits, saunas, or hot baths to induce sweating is another popular tactic for quick water loss. Boxers need to be cautious with these methods, ensuring they don’t compromise their health by cutting too much weight too quickly.

Rehydration and Recovery After Weigh-In

Once the weigh-in is over, fighters typically begin rehydrating immediately. Proper rehydration and replenishing lost nutrients are crucial for optimal performance. Fighters often consume fluids containing electrolytes and high-carb meals to restore energy and strength before stepping into the ring.

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