Bowling Ball Holes Rules

As some of you know i ve spent an unreasonably large number of hours over the last five or six years studying the physics of bowling ball motion culminating in the development of a software tool called powerhouse blueprint.
Bowling ball holes rules. As the vast majority of you are well aware last year the united states bowling congress elected to eliminate all balance holes effective august 1 2020. Pga approved balls can have two or three finger holes but must be balanced within 3 ounces on all sides. Bowling ball rules today and as of 8 1 2020 recently usbc has enacted a few new rules regarding bowling balls balance and the introduction of foreign substances to the cover while bowling. The usbc playing rules starting aug.
Holes or indentations for gripping purposes shall not. The maximum allowable diameter is 1 1 4 for usbc. Hundreds of rules for the sport of bowling are the responsibility of the united states bowling congress. United states bowling congress has modified the specifications on bowling ball gripping holes.
How do the bowling ball weight hole rules change ball motion in the beginning of this week usbc unveiled some rule changes taking effect in the next few years. For our pro tip i m going to talk about the change regarding weight holes and share my personal. Starting august 1 2018 balls that do not have balance holes including balls with balance holes that have been plugged are allowed to have up to 3 ounces of static imbalance in all directions side finger thumb and top bottom. Bowling ball weight holes will no longer be permitted in league and tournament play as of august 1 2020.
This will hopefully be a plain speak summary of these rules as they apply to anyone. Balance holes in bowling balls are an extra hole balance hole or weight hole in a ball which is used to get the ball within united state bowling congress usbc specifications for imbalance static balance. Rules updates the latest updates concerning usbc rules during the covid 19 pandemic. If you have any bowling balls with balance holes that you wish to use in usbc sanctioned competition on or after that date you must have the balance hole plugged.
All equipment with a weight hole will need to be plugged prior to this date. Pga bowling rules call for a solid ball of no more than 27 inches around and weighing no more than 16 pounds.