String Pin Information
USBC certified string pin bowling as independent competition effective Aug. 1, 2023.
Rule 19 – String Pin Bowling
equipment complies with USBC specifications for string machines.
b. All USBC rules shall apply to all competitions utilizing certified String machines insofar as practical. See rules
6a and 7c for specific applications when using string machines.
c. Averages established on lanes utilizing certified string machines can be used for entry purposes in
competitions where freefall or string machines are being used.
Certified String Pin Competition Guide
String Pinsetter Commonly Asked Questions
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