A Round is a minimum of four Hands, which is played until all players have played as East Wind once.

A Wind of the Round is assigned and this will remain in force until the Round is complete. The significance of the Wind of the Round is that you can score higher points if you can manage to collect Pungs or Kongs of this tile. The length of a Round can vary considerably because it is determined by the time it takes to give each player a chance of playing as East Wind - and this can vary enormously if, for example, the East Wind player continues to win, because in such circumstances the East Wind player will remain as the East Wind player until they lose!