The UFC is celebrating its 30th year and to commemorate the milestone, MMA Junkie has compiled its 30 greatest UFC fighters of all time. Every day until the anniversary of UFC 1 on Nov. 12 (1993), we will reveal one fighter on our list.

Today, MMA Junkie assistant managing editor Matthew Wells brings you No. 20: Ronda Rousey.

You can watch Wells’ career retrospective on Rousey above; video produced by Ken Hathaway.

Also see:

About the list: All 12 members of our staff submitted their own individual 30 greatest UFC fighters list. Each fighter was assigned a corresponding numerical value based on where they were ranked on an individual’s list, i.e. No. 1 = 30, No. 2 = 29, etc. We took those numbers and added them up to get a total number for each fighter to determine the composite ranking of MMA Junkie’s 30 greatest UFC fighters of all time.