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Fun Holiday – Underdog Day

Underdog Day is celebrated every year on the third Friday of December.

19 Dec
Underdog Day
Friday, December 19, 2025
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Dandelion growing on a curb.
Root for an underdog in your life.
©iStockphoto.com/Gewoldi

This unofficial holiday owes its name to the term “underdog” popularly used in sports and competitions and refers to someone who is popularly expected to lose.

All of us know of someone who works very hard but never gets recognized for their hard work. In addition, they are usually expected to fail in their efforts. Maybe, you have been in a situation like that? Celebrate all such underdogs and unsung heroes on Underdog Day.

How to Celebrate?

  • Remember that it is sometimes ok to be an underdog. It may be frustrating sometimes, but when underdogs win, they tend to upset the expected order of things.
  • If you know of an underdog, tell them to persevere on.
  • If you feel you are an underdog, work harder and shatter everyone’s expectations.
  • Watch the American animated series, Underdog. The series, which aired on NBC in the 1960s, detailed the adventures of Underdog, a superhero who spoke in rhyming verse and wore a caped costume.

Did You Know…

…that the opposite of an underdog is a top dog and in if an underdog wins in a competition, the outcome of the event is known as an upset.

Underdog Day Observances

Year Weekday Date Name
2025 Fri Dec 19 Underdog Day
2026 Fri Dec 18 Underdog Day
2027 Fri Dec 17 Underdog Day
2028 Fri Dec 15 Underdog Day
2029 Fri Dec 21 Underdog Day
2030 Fri Dec 20 Underdog Day
2031 Fri Dec 19 Underdog Day
2032 Fri Dec 17 Underdog Day
2033 Fri Dec 16 Underdog Day
2034 Fri Dec 15 Underdog Day