the third Friday in December (since 1976)
Founded by the late Peter Moeller and first observed in 1976, Underdog Day is a day "to salute, before the year's end, all of the underdogs and unsung heroes—the Number Two people who contribute so much to the Number One people we read about." Who are these people? Think Robin, not Batman; Chewbacca, not Han; Dr. Watson, not Sherlock Holmes. It is a day for those who play second fiddle and haven't made it to the top; it is also for those who have something holding them down, or who have been defeated but continue on. An "underdog of the year" was chosen each year during the early years of the holiday.