additionally , while going out of a fighting area is an offense in such sports , the player often does not lose the match straight after in most cases . また、試合場の外に出ることを反則としても即座に負けと認める例も少ない。
because in the case of ' hitokataya ' (sumo arena made by crowd of people ), audience could interfere sumo bouts to help their favorite wrestlers , resulting in frequent occurrence of quarrels among the audience , the fighting area was surrounded by four posts and ropes , as in the ring of wrestling , in the kanbun era (1661 to 1673 ). ｢人方屋｣では特定の力士のひいきが手を出して勝負を妨害するなど喧嘩が絶えないということで、まず寛文年間（1661年～1673年）にリング (格闘技)のように4本の柱の下に紐などでかこったものになった。
