If I’m fishing with 10kg line and I catch a fish that’s too small to break the 10kg line-class record, but big enough to beat a fish in a heavier line-class (for example, 15kg, 24kg, 37kg, and so on), can I submit it for a heavier line-class record category?
No. Depending on whether the line under- or over-tests, IGFA places catches in line classes based on the manufacturer’s stated or actual breaking-strength of the line.
What happens if the line I submitted with the application tests above the manufacturer’s stated breaking-strength?
If your line over-tests a given line-class it will automatically be placed in the line-class category representative of its breaking-strength. If your catch is heavy enough to beat the existing record, then you are eligible for the record.
What if my line breaks lower than the manufacturer’s stated breaking-strength? Will you drop the catch into a lower line-class category?
No. In cases where the line tests under what is stated by the manufacturer, the catch will remain in the line-class category representative of the manufacturer’s stated breaking-strength. In order to verify the manufacturer’s stated breaking-strength, IGFA staff use micrometers to measure line diameter. A line’s diameter can then be cross referenced with the manufacturer’s line specifics to determine its true identity.
Amendment to IGFA record application requirements
Due to the increasing prevalence of super-strength monofilament and multifilament lines, IGFA is now requiring that all non-fly rod record applications must include 50 feet of line still attached to the double line and leader if one is used. This includes All-Tackle and Junior record applications as well.
IGFA Rule Book: Rules Explained: