





Sumo wrestling is a competitive contact sport where two wrestlers (rikishi) attempt to force one another out of a circular ring (dohyo) or to touch the ground with anything other than the soles of the feet. The sport originated in Japan, the only country where it is practiced professionally.
The Japanese consider sumo a gendai budo (a modern Japanese martial art), though the sport has a history spanning many centuries. The sumo tradition is very ancient, and even today the sport includes many ritual elements, such as the use of salt for purification, from the days sumo was used in the Shinto religion.
Grand Sumo tournaments last for 15 days and are held 6 times a year, Once in Nagoya, Osaka and Fukuoka, and three times a year at the Ryogoku Kokugikan in Tokyo. Dates for the Grand 2012 Sumo Tournaments are below:
2012 Grand Tournament Schedule:
| Tournament | Venue | Advance Tickets | Sumo Ranking | First Day | Last Day |
| January | Kokugikan (Tokyo) | Dec 10th, 2011 | Dec 21st, 2011 | Jan 8th, 2012 | Jan 22nd, 2012 |
| March | Osaka Prefecture | Feb 5th, (Sun) | Feb 27th (Mon) | March 11th (Sun) | March 25th (Sun) |
| May | Kokugikan (Tokyo) | April 7th, (Sun) | April 23rd(Mon) | May 6th (Sun) | May 20th(Sun) |
| July | Aichi Prefecture | May 17th, (Thr) | June 25th (Mon) | July 8th (Sun) | July 22th (Sun) |
| September | Kokugikan (Tokyo) | Aug 4th, (Sat) | August 27th (Mon) | Sept 9th (Sun) | Sept 23rd(Sun) |
| November | Fukuoka Center | Oct 6th, (Sat) | Oct 29th, (Mon) | Nov 11th (Sun) | Nov 25th (Sun) |
