Bouts of sumo wrestling are very short mostly less than a minute (sometimes only a few seconds). If a bout lasts for more than four minutes, then the referee calls a mizu-iri (water break) after which the wrestlers return to the position from where they left.
The sport is divided into six ranking divisions in which the wrestlers are promoted and demoted based on the merit of their winning/losing records in official competitions. The divisions are: makuuchi, jūryō, makushita, sandanme, jonidan and jonokuchi. Wrestlers enter in the lowest jonokuchi division at the beginning and then work their way up to reach the top division.
Winning The Bout:
A bout is won by the wrestler if-