Moundball is a side-betting game typically played by spectators at Major League Baseball games. Often played to pass the time during slow games, Moundball has a simple ruleset and requires little to no equipment. The game is turn-based, with the goal of having the ball remain on the mound at the end of a player's half inning turn. Playing the Game At the start of the game, each player places their ante into a cup or hat. (The money can also be held in a pocket or hand, or the game can be played with mental IOUs or for simple points.) The game begins in the top of the first inning, with the player closest to the aisle holding the cup for the length of the half inning. Alternately, players may draw numbers or otherwise randomly determine the order. At the end of the half inning, the player from the fielding team to record the last out will typically throw or roll the ball towards the mound, where the opposing pitcher might easily retrieve it. This is the seminal moment of gameplay, as the ball will usually reach the mound, roll up on the slope of dirt, and roll back towards the grass due to gravity or momentum. Winning A Turn Should the ball stay on the dirt of the mound, the player holding the cup is declared the winner, and collects all money in the cup. If the ball should roll back onto the grass, or fail to reach the mound at all, that player has lost the round, and the cup passes to the next player. The money in the cup carries over, as in a skins game in golf, and each player must add more money to the cup. If a player is not in his or her seat holding the cup at the time of the winning or losing event, the other players are not obligated to inform him or her of a winning moundball. It is each player's sole responsibility to pay attention to the moundball results on their own particular turn. Moving to the Next Turn Each time the ball stays on the mound, the player whose turn it is to hold the cup wins all of the money contained therein. Each time the ball does not stay on the mound, the money in the cup increments by one dollar per player. Either way,