Here are some simple rules for sumo wrestling, for use with the Pathfinder Roleplaying Game.

The objective of sumo is to throw your opponent out of the ring, or dohyou, or to force them to touch the ground with any part of their bodies other than the soles of their feet.

To play, both contestants roll for initiative. They then attempt to grapple each other. The first contestant to successfully grapple and move their opponent is the winner of the bout.

When a contestant attempts to move an opponent, the opponent gets a free attempt to break the grapple with the usual +4, as if they were being moved into hazardous terrain. See the “Combat” chapter in the Pathfinder Roleplaying Game Core Rulebook for more on grappling and moving grappled opponents.

The above rules will appear in a forthcoming supplement for the Kamen, Land of Masks Campaign series.