Changes

==Rules==

==Rules==

Players must use a ball that is at least one-twelfth their body weight (up to 16 pounds).  They have five minutes to complete as much of their ten-frame game as possible, using a single lane.  The ball must not ever strike the metal "sweep" in front of the pins, as that is a disqualification, and the player's score will be zero for that game.  Optionally, using a standard 2-lane system at a regulation alley, the player may alternate lanes to intensify the competition, and the sum of the two scores generated on the two lanes is tallied.   

Players must use a ball that is at least one-twelfth their body weight (up to 16 pounds).  They have five minutes to complete as much of their ten-frame game as possible, using a single lane.  The ball must not ever strike the metal "sweep" in front of the pins, as that is a disqualification, and the player's score will be zero for that game.   

 

Optionally, using a standard 2-lane system at a regulation alley, the player may alternate lanes to intensify the competition, and the sum of the two scores generated on the two lanes is tallied.  Typically in this configuration, two or more bowling balls are kept in play, to minimize the delay of the ball return.  Competitors may wish to reduce the duration of the match to three minutes, from five.

===Speed threshold===

===Speed threshold===