There is a lot of comments in here, going against the idea of making female only competitions, first of all, I'm going to copy paste a comment /u/blitzdota made regarding a post arguing against the idea:

The biggest issue with most of these arguments that come up, is that although there isn't a physical difference, there is a cultural / societal one. Playing video games as a female isn't really encouraged, and as such most girls will pick it up a lot later in life, or they won't really have a community to get behind to get better at it. Most feel alienated, or uncomfortable, and the ones that are actually serious about getting better run into a host of issues. Most of the men you'll play with will not take you seriously or hit on you, and if you refuse their advances you're some kinda bitch, or if you date someone you're a slut etc. If you do happen to be good and get on a top team, a lot of people will question if you're actually that good, or if you're on the team because you're sleeping with someone or you're a girl etc. Imagine trying to get better in that sort of environment. Anyone that's actually saying that online gaming is an equal ground for both men and women are oblivious. These types of tournaments aren't being advertised to ban out males and try and glorify sexism, its to try and encourage females to find other women to play with, have a more encouraging atmosphere to get better at, and find the competitive drive. It's about building a better atmosphere. If there was a women's only TI4, I'd have some issues, but a tournament like this? Anyways I guess what I'm really getting at is can Zephyr participate in this and whats the prize pool like?

edit: I'm really glad that my comment has stirred some discussion, although you might disagree with what I or someone else says, lets try to be civil. edit#2:relevant esex http://esportsexpress.com/2014/02/all-female-lol-tournament-may-threaten-fabric-of-gaming-society/

Secondly, relevant xkcd: http://xkcd.com/1392/