Earlier quoted context omitted.
There are just too many male chess grandmasters. Look into places where men are outnumbered and you will see "to male X" as a separate category.
Mind providing examples of males having prize when outnumbered (preferably not once but consistently) or where men get headstart (like in marathon I can't remember name of, where women get head start)? Because I will be angry about that too. It kills competition, it kills meritocracy.
And why single out the women prize, as opposed to the over 65 or under 13 prizes?