The Southern Hemisphere's principal team competition, Super Rugby, established as Super 12 in 1996 and later known as Super 14 before adopting its current name in 2011, has seen only one perfect season.
One other team has won a championship unbeaten: in 1997, the Auckland Blues (known simply as "Blues" since 2000), which at the time represented the central and southern parts of the Auckland area plus some adjacent regions to the south, finished the regular season with one draw from 11 matches.