Sumo is the iconic sport of Japan.
The wrestlers are called “rikishi”.
The ring is called the “dohyou”.
There are two ways to win, making your opponent step out of the ring or if your opponent touches the ground with any part of his body other than the bottom of his feet.
Before the match starts several rituals derived from shinto practices have to be performed, including the classic stomp, throwing salts and water.
There are six grand tournaments per year: three in Tokyo and one each in Osaka, Nagoya and Fukuoka.
Check out sumo’s official site with more details and the upcoming Grand Tournament.