Hmmm, this indeed is an interesting one.
Gotta say my partner and I love nothing more on a Friday night than sipping on red whilst watching 2 giant beef-cakes beat the absolute snot out of each other. And here was I thinking we were the only 2 girls to enjoy this fabulous armchair sport! MMA talk @ Susans - who would have thought

Anyway's back on topic, have any of you seen Cristiane "Cyborg" Santos? if not then you need to take a look and tell me if you still think this wouldn't be a fair bout against a Trans-Woman competitor.
Here in Oz, Roller Derby has become rather massive and I know for fact there are heaps of Trans girls who compete professionally in this.
So far as contact sport goes Roller Derby is pretty er contact I would say. (and I haven't heard any complaints thus far)
There needs to be and will always be pioneers in everything that us trans people will do for the first time, whether it be sport or some other largely Cis dominated activity, at first everyone will cry and crack a general sad, but then through media exposure and education it slowly becomes acceptable and then the norm, and of coarse all those whiny little sheeps of the world who cried will once again be happy, only to soon find something else and new to sniff about.
The more of us everywhere the better for us all.
Jay-Bird