Back in September, a man beat out a field of 260 women in the Borgata Poker Open to win the ladies tournament (link).
The current version of ladies tourney is going on right now at the Borgata and two men have entered the field.
This is nothing new. During the World Series of Poker in Las Vegas, men also entered the field in the ladies tournament. It was a huge debate that many professional gave their opinion on.
Here two blog posts by Annie Duke on the topic: post 1 (where she also links to other posts) and post 2.
What are your thoughts on men playing in events that are geared for women?