Rankings Update: Pound for pound changes
This past weekend the UFC held UFC 183 with a couple meaningful bouts that affected rankings, most noticeably the pound for pound rankings shifted.

As they do after each event, today the UFC released updated rankings after a select group of media members ranked fighters in every division.
This past weekend the UFC held UFC 183 with a couple meaningful bouts that affected rankings, most noticeably the pound for pound rankings shifted.
POUND-FOR-POUND
1 Jon Jones
2 Jose Aldo
3 Demetrious Johnson
4 Chris Weidman
5 Anthony Pettis
6 Cain Velasquez
7 Ronda Rousey
8 Anderson Silva +1
9 T.J. Dillashaw -1
10 Robbie Lawler +1
11 Renan Barao -1
12 Johny Hendricks
13 Vitor Belfort
14 Dominick Cruz
15 Fabricio Werdum
With a win over Nick Diaz at UFC 183, Anderson Silva moved up one spot in the rankings with his first fight in over a year. Diaz is unranked pound for pound. UFC bantamweight Dillashaw was forced down one position to ninth as well.
Pound for pound rankings are hypothetical at best, so people often change their mind, and this week without fighting Robbie Lawler and Renan Barao swapped places.
