Christmas Bowl
The Christmas Bowl (クリスマスボウル, Kurisumasu Bōru) is the annual Japanese high-school American football championship game. As with most American Football leagues, the league setup is split into two regions — Kantō and Kansai — and the champions of each region play in the Christmas Bowl. It takes place on even years in Kansai, and on odd years in Kantō. Since 2001, the matches in Kantō have taken place in Ajinomoto Stadium.
Surprisingly, the competition has been going on for almost as long as the Super Bowl, being only four contests behind.
The Christmas Bowl in the manga and anime series Eyeshield 21 is based on this competition.