You won't find that formula on the web. I got the denominator directly from Doug Blodgett, record keeper at the IGFA. It is derived from their data base of bass record submissions and 10 lb Bass Club submissions. Therefore, it has to be the most accurate available for the species.

I just received my copy of IGFA's International Angler Quarterly Newsletter. Prominently featured is the color photo of Leaha Trew with her Spring Lake bass thrusted way out. However, I'll note that they report a length of 29" overall, 25" girth. Fork length was 27.5".

OK warm up the calculator:

(27.5x25x25)/914 = 18.8 lbs

Very nice fish. Leah looks better in color. Game Over!