Grading History (over the board play)
B.C.F grades, from the first grade in 1968 through to 2006, with N.C.C.U grades covering the mid-1980s. Some years none or insufficient games were played to obtain a grading.
Gradings for 1974 and 2005 have been corrected for missing games not included in the BCF grading calculation.
Gradings from 2016 to early 2020 show the twice yearly ECF data.