1. Kelas berat di atas 90,719 kilogram.
Heavyweight (unlimited).
2. Kelas penjelajah 90,719 kilogram.
Cruiserweight 200 lbs.
3. Kelas berat ringan atau kelas berat yunior 79.379 kilogram.
Light heavyweight / Junior heavyweight 175 lbs.
4. Kelas menengah super 76.204 kilogram.
Super middleweight 168 lbs.
5. Kelas menengah 72,575 kilogram.
Middleweight 160 lbs.
6. Kelas menengah yunior atau kelas welter super 69.853 kilogram.
Junior middleweight / Super welterweight 154 lbs.
7. Kelas welter 66.678 kilogram.
Welterweight 147 lbs.
8. Kelas welter yunior atau kelas ringan super 63.503 kilogram.
Junior welterweight / Super lightweight 140 lbs.
9. Kelas ringan 61,235 kilogram.
Lightweight 135 lbs.
10. Kelas ringan yunior atau kelas bulu super 58,967 kilogram.
Junior lightweight / Super featherweight 130 lbs.
11. Kelas bulu 57.153 kilogram.
Featherweight 126 lbs.
12. Kelas bulu yunior atau kelas bantam super 55,338 kilogram.
Junior featherweight / Super bantamweight 122 lbs.
13. Kelas bantam 53.524 kilogram.
Bantamweight 118 lbs.
14. Kelas bantam yunior atau kelas terbang super 52.163 kilogram.
Junior bantamweight / Super flyweight 115 lbs.
15. Kelas terbang 50,802 kilogram.
Flyweight 112 lbs.
16. Kelas terbang ringan atau kelas terbang yunior 48.988 kilogram.
Light flyweight / Junior flyweight 108 lbs.
17. Kelas terbang mini atau kelas minimum 47,627 kilogram.
Mini flyweight / Minimumweight 105 lbs.