Also called Strawweight, this is the lightest division in professional boxing. Fighters like Ricardo López dominated this class.

A division for smaller, quick fighters. Famous names include Roman González.

Famous for speed and agility, with legends like Manny Pacquiao starting here.

Popular in Asia and Latin America, known for power punchers like Naoya Inoue.

Fast-paced division, featuring fighters like Nonito Donaire.

A competitive division with legends like Salvador Sánchez.

Known for explosive fights, featuring names like Floyd Mayweather Jr. in his early career.

One of the most stacked divisions, with legends like Sugar Ray Leonard and Manny Pacquiao.

Dominated by fighters like Gennady Golovkin and Canelo Álvarez.

The most famous division, home to legends like Muhammad Ali, Mike Tyson, and Tyson Fury.