Oops, it doesn't look like 'Running Repeat Running Repeat day' is a national day..

Other days

brow

Brow Day
gum

Gum Day
self appreciation

Self Appreciation Day
tulip

Tulip Day
stress awareness

Stress Awareness Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
frozen yogurt

Frozen Yogurt Day
ponytail

Ponytail Day
blanket fort

Blanket Fort Day
lumpy rug

Lumpy Rug Day