Heavyweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Cruiserweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Light Heavyweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Super Middleweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Middleweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Super Welterweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Welterweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Super Lightweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Lightweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Super Featherweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Featherweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Super Bantamweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Bantamweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Super Flyweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Flyweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.

Junior Flyweight: This month's changes are the result of a yearly evaluation of all ranked fighters based on competition, activity and fight results and, thus, would be too lengthy to list for every fighter. Please address any specific inquiries to naba@rogers.com. Thank you.