|Pacific-Asia Curling Championships 2021||ALMATY, Kazakhstan||11/6/2021||11/13/2021||Men , Women|
|Le Gruyère AOP European Curling Championships 2021||LILLEHAMMER, Norway||11/20/2021||11/27/2021||Men , Women , Women|
|Le Gruyère AOP European Curling Championships B-Division 2021||LILLEHAMMER, Norway||11/20/2021||11/27/2021||Men|
Six men's teams successfully defended their World Championship title.
First of them was the legendary Ernie Richardson that did it twice. First in 1960 and then in 1963. Ron Northcott was the first in the World Championship era in 1969 and then Don Duguid that was undefeated in their defense in 1971.
It then took 32 years until the next time when Randy Ferbey did it in 2003.
Team Niklas Edin is unique that they were the first to successfully defend their title twice winning in 201, 2019 and 2021. Edin is also the only non-Canadian team to successfully defend their title.