The heavyweight was the middle class, allowing boxers of any weight.

The weight class was the second-heaviest contested, and allowed boxers of up to 175 pounds (79.4 kilograms).

Can we justify allowing boxers to be exploited for our pleasure?

The weight class was the heaviest contested, and allowed boxers over 175 pounds (79.4 kilograms).

The lightweight was the middle class, allowing boxers of up to 140 pounds (63.5 kg).

The weight class was the fourth-lightest contested, and allowed boxers of up to 135 pounds (61.2 kilograms).

The weight class was the third-heaviest contested, and allowed boxers of up to 160 pounds (72.6 kilograms).

The weight class was the third-lightest contested, and allowed boxers of up to 126 pounds (57.2 kilograms).

The weight class was the lightest contested, and allowed boxers of up to 51 kilograms.

The weight class was the fourth-heaviest contested, and allowed boxers of up to 147 pounds (66.7 kilograms).