Oops, it doesn't look like 'champion by the end of the day' is a national day..

Other days

artists

Artists Day
eat what you want

Eat What You Want Day
hiv awareness

Hiv Awareness Day
raise awerness of zeus

Raise Awerness Of Zeus Day
ponytail

Ponytail Day
kiss a brunette

Kiss A Brunette Day
gum

Gum Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
singles

Singles Day
blanket fort

Blanket Fort Day