Kegel Aalborg International 2025 will be conducted using the 78D rule.

Therefore regulations apply to which balls is allowed to be in use during the tournament.

The rule is listed in the EBT Rules 2025 which can be found here: EBT Rules 2025 (§31)

Link to list of approved bowling balls can be found here: List of approved balls

VIOLATION OF THE RULE

a. At an athlete’s first violation in a tournament, the frame, in which an illegally cleaned, adjusted or altered bowling ball, as well as illegal ball is found to be in use, will be set to zero and the athlete will be given 1 penalty point.

b. At an athlete’s second violation of the bowling ball rule in a tournament,the athlete will be given 2 penalty points and the score in the squad or final stage, where the violation takes place, will be null and void.

c. At an athlete’s third violation of the bowling ball rule in a tournament, the athlete will be given 3 penalty points, the score in the squad or final stage, where the violation takes place, will be null and void and the athlete will be suspended from the rest of the tournament.