"our girls outperformed every girls’ school in England this year at A-Level"
There must be some very strange stats in his year to support that statement. The DoE A-level tables shows Brighton College at #102 on the list, ranked by average point score (996.7). That is a superb result which indicates a high academic standard of intake and teaching.
However, in the list of schools with higher A level results there are many girls schools (LEH 1177, Chelmsford Girls 1150, NLC 1110, Stratford Girls 1107, Lancaster Girls 1092, Dover Girls 1087, Sounthend Girls 1077, Colchester Girls 1063, etc etc, etc, etc). Granted I haven't checked to see how many girls 6th forms accept boys now, but even when they do, it's usually only a few.
For his statement to be true but the school as a whole to be 102 on the list, boys at his school must have performed terribly badly to bring down the average. Especially as he claims his girls have done better than every girls school in England. Either his wrong or they have some serious issues with their boys results.
Have I got my guestimation wrong here?