ESPN's division-by-division rankings

Kamaru Usman is No. 1 at welterweight after dethroning Tyron Woodley on March 2. Chris Unger/Zuffa LLC/Getty Images

Check out my rankings within each weight division by clicking on the links below.

For a list of current UFC champions in all weight classes, click here.

Note: Results are current, rankings as of March 4.