Oops, it doesn't look like 'tournament and you graduate all in the same day' is a national day..

Other days

bounce

Bounce Day

gum

Gum Day

donate your hair

Donate Your Hair Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day

lost sock memorial

Lost Sock Memorial Day

Emoji Day

slime

Slime Day

aloxolt

Aloxolt Day

eat what you want

Eat What You Want Day

chocolate milkshake

Chocolate Milkshake Day