Sumo Tournament is held in odd month. The place of holding is January, May, September in Tokyo, March in Osaka, July in Nagoya, November in Fukuoka.
One tournament begins on Sunday and there are matches everyday for 15 days until Sunday the following week. So it is a good result if some wrestler win more than 8 victories.
Since it is 15 days every other month, there will be matches once a day for 90 days a year.
Also, when there is no tournament, they will also perform in the rural areas. That is a hard schedule.