Oops, it doesn't look like 'championship any day' is a national day..

Other days

Stud Day

Cursing Day

Carpenters Day

Tell A Fairytale Day

Kiss A Brunette Day

Blanket Fort Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Hot Chocolate Day

Kiss A Ginger Day

Appreciate Yaself A Lil Extra Day