Looking at the UFC's champions at the beginning and end of the decade (2010-2019)

Welterweight: Georges St. Pierre and Kamaru Usman

Kamaru Usman now dominates the UFC's Welterweight division

Arguably the greatest UFC champion of all time, Georges St. Pierre came into the decade already having made 3 defenses of his Welterweight title, and 2010 saw him put together 2 more, against Dan Hardy and Josh Koscheck. A further 4 followed before ‘GSP’ relinquished his title in late 2013 to take a leave of absence from the sport.

Johny Hendricks was the next champion, but his title reign was short-lived as his first defense saw him lose it to Robbie Lawler. Lawler then held the title for a year and half before dropping to Tyron Woodley, who put together 4 defenses before losing it to Kamaru Usman earlier in 2019.

The UFC’s first African champion, Usman defeated Colby Covington in his first title defense at UFC 245 and he looks set for a potentially dominant title reign going into the next decade – undoubtedly with St. Pierre’s divisional record of 9 successful title defenses in his sights.