Oops, it doesn't look like 'champions on the day' is a national day..

Other days

raise awerness of zeus

Raise Awerness Of Zeus Day
china

China Day
me

Me Day
artists

Artists Day
donate your hair

Donate Your Hair Day
hoodie

Hoodie Day
frozen yogurt

Frozen Yogurt Day
self appreciation

Self Appreciation Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
slime

Slime Day