It isn't that way in Walking and Racking horse shows. Those are decidedly male-dominated. I don't think I've EVER seen a woman win a WGC or even any of the other upper classes. It's mostly the good-ol-boy network of professional trainers who do any good at that level. Sad but true.
Well, that's interesting... Is it because it's Southern? "We don't tolerate none of them ~poofters~ 'round here!"