Alle atleter og proshopper skal være opmærksom på nye kravspecifikationer for
bowlingkugler.
Ifølge USBC og World Bowling, er balancehuller i bowlingkugler ikke længere tilladt. Kuglerne må endvidere
kun have det antal huller, der svarer til det antal fingrer, atleterne anvender.
Der er meldt en overgangsperiode ud, således at forholdene skal være bragt i orden, senest den 1. august
2020.
Betydning for atleterne: Atleterne skal sikre sig, at eventuelle balancehuller lukkes senest 31. juli 2020 og,
at nye kugler, der bores efter 1. august 2020, overholder de nye regler.
Reglerne er også gældende for atleternes deltagelse i nationale aktiviteter under DBwF.
Danmarks Bowling Forbund / 15.01.2019
På bestyrelsens vegne
Jan Donde
Administrations -og udviklingschef
Se endvidere World Bowlings meddelelse:
Technical Committee recommended certain revisions to the ball specifications, with effective dates starting
January 1, 2019. The recommendation was considered by the Executive Board, which unanimously
approved the following rule changes (in red), which are effective until the 2019 Congress has the
opportunity to ratify or reject: 11.12 Drilling specifications 11.12.1 The following limitations, as specified,
shall govern the drilling of holes in the ball. 11.12.2 Holes or indentations for gripping purposes shall not
exceed five and shall be limited to one for each finger and one for the thumb, all for the same hand. The
player is not required to use all finger holes in any specific delivery, but they must be able to demonstrate,
with the same hand, that each gripping hole can be simultaneously used for gripping purposes. Any thumb
hole that is not used for gripping purposes during the delivery would be classified as a balance hole. 11.12.3
(until August 1, 2020), One hole for balance purposes not to exceed 1 ¼ inch (31.8 mm) diameter.
(Including the surface opening). 11.12.4 No more than one vent hole to each finger and/or thumb hole not
to exceed ¼ inch (6.4 mm) in diameter. (Including the surface opening).11.12.5 One mill hole for inspection
purposes not to exceed 5/8 inch (15.9 mm) in diameter and 1/8 inch (3.2 mm) in depth.11.13 Balance
11.13.1 The following tolerances shall be permissible in the balance of a bowling ball used in sanctioned
competition. 11.13.2 A. Weight more than 10 pounds (4.53 kg) a) Not more than 3 ounces (85 grams)
difference between the top half of the ball (gripping holes side) and the bottom half of the ball (side
opposite the gripping holes). b) (until August 1, 2020), Not more than 1 ounce (28 grams) difference
between the half of the ball to the left and the half of the ball to the right of the center of grip (side
weight). c) (until August 1, 2020), Not more than 1 ounce (28 grams) difference between the half of the ball
toward the thumb hole side of the center of grip and toward the finger holes side of the center of grip.
11.13.3 For balls without a balance hole not more than 3 ounces (85 grams) between any two halves of the
ball. A ball used without any gripping holes or indentations may not have more than 3 ounces (85 grams) of
difference between any two halves of the ball. The effective date for this revision is January 1, 2019; if a
World Bowling or Zone event finishes on or after January 1, 2019 then 11.13.3 applies to the entirety of
that event.