Editing Six Nations Championship (section)

=== Five Nations (1910–1931) ===
{{Sticky header}}
{| class="wikitable sortable sticky-header" style="text-align:center"
|-
!Year
!Champions
![[Grand Slam (rugby union)|Grand Slam]]
![[Triple Crown (rugby union)|Triple Crown]]
![[Calcutta Cup]]
|-
|[[1910 Five Nations Championship|1910]]
|{{ru|ENG}}
| –
| –
|{{ru|ENG}}
|-
|[[1911 Five Nations Championship|1911]]
|{{ru|WAL|1807}}
|{{ru|WAL|1807}}
|{{ru|WAL|1807}}
|{{ru|ENG}}
|-
|[[1912 Five Nations Championship|1912]]
|{{ru|IRE|1783}} and {{ru|ENG}}
| –
| –
|{{ru|SCO}}
|-
|[[1913 Five Nations Championship|1913]]
|{{ru|ENG}}
|{{ru|ENG}}
|{{ru|ENG}}
|{{ru|ENG}}
|-
|[[1914 Five Nations Championship|1914]]
|{{ru|ENG}}
|{{ru|ENG}}
|{{ru|ENG}}
|{{ru|ENG}}
|-
|1915–19
|colspan=4|Not held due to [[World War I]]
|-
|[[1920 Five Nations Championship|1920]]
|{{ru|SCO}}, {{ru|WAL|1807}} and {{ru|ENG}}
| –
| –
|{{ru|ENG}}
|-
|[[1921 Five Nations Championship|1921]]
|{{ru|ENG}}
|{{ru|ENG}}
|{{ru|ENG}}
|{{ru|ENG}}
|-
|[[1922 Five Nations Championship|1922]]
|{{ru|WAL|1807}}
| –
| –
|{{ru|ENG}}
|-
|[[1923 Five Nations Championship|1923]]
|{{ru|ENG}}
|{{ru|ENG}}
|{{ru|ENG}}
|{{ru|ENG}}
|-
|[[1924 Five Nations Championship|1924]]
|{{ru|ENG}}
|{{ru|ENG}}
|{{ru|ENG}}
|{{ru|ENG}}
|-
|[[1925 Five Nations Championship|1925]]
|{{ru|SCO}}
|{{ru|SCO}}
|{{ru|SCO}}
|{{ru|SCO}}
|-
|[[1926 Five Nations Championship|1926]]
|{{ru|IRE}} and {{ru|SCO}}
| –
| –
|{{ru|SCO}}
|-
|[[1927 Five Nations Championship|1927]]
|{{ru|IRE}} and {{ru|SCO}}
| –
| –
|{{ru|SCO}}
|-
|[[1928 Five Nations Championship|1928]]
|{{ru|ENG}}
|{{ru|ENG}}
|{{ru|ENG}}
|{{ru|ENG}}
|-
|[[1929 Five Nations Championship|1929]]
|{{ru|SCO}}
| –
| –
|{{ru|SCO}}
|-
|[[1930 Five Nations Championship|1930]]
|{{ru|ENG}}
| –
| –
| –
|-
|[[1931 Five Nations Championship|1931]]
|{{ru|WAL|1807}}
| –
| –
|{{ru|SCO}}
|}
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